{"title":"Air Pumps for Ponds, Septic Tanks \u0026 Wastewater Systems","description":"\u003cp\u003eAir pumps provide a continuous supply of air for applications where oxygenation and aeration are important. They are commonly used in garden ponds, fish ponds, septic tanks and wastewater treatment systems to introduce air into water or wastewater.\u003c\/p\u003e\n\u003cp\u003eAt GroAqua, our range includes Enviro ET linear diaphragm air pumps, designed to provide reliable, oil-free airflow for a variety of aeration applications. We also stock compatible service kits and replacement parts to help maintain your equipment.\u003c\/p\u003e\n\u003cp\u003eWhether you need a pond aeration pump to support fish and aquatic life, an air pump for a septic tank or a blower for a wastewater treatment system, choosing the correct model is important for reliable operation.\u003c\/p\u003e\n\u003ch2\u003ePond Air Pumps and Aeration\u003c\/h2\u003e\n\u003cp\u003ePond air pumps help introduce oxygen into pond water through an air line and diffuser or air stone. This creates a flow of bubbles that promotes gas exchange and helps maintain oxygen levels throughout the pond.\u003c\/p\u003e\n\u003cp\u003eAdequate aeration is particularly important in ponds containing fish, including koi ponds and other stocked garden ponds. Oxygen levels can become more challenging to maintain during warm weather, when water holds less dissolved oxygen and fish and biological activity may increase oxygen demand.\u003c\/p\u003e\n\u003cp\u003eA suitable pond air pump can help:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eIncrease oxygen transfer into pond water.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupport fish and other aquatic life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eImprove water circulation when used with suitable diffusers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupport aerobic biological activity in compatible filtration systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReduce areas of stagnant water when correctly positioned.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe required pump capacity depends on pond volume, stocking levels, water depth, diffuser arrangement and seasonal conditions. A larger pond or heavily stocked koi pond may require a higher-capacity air pump or multiple aeration points.\u003c\/p\u003e\n\u003cp\u003eFor best results, pair your air pump with suitable air hose, manifolds and diffusers.\u003c\/p\u003e\n\u003ch2\u003eSeptic Tank Air Pumps and Aerators\u003c\/h2\u003e\n\u003cp\u003eAir pumps are used in certain septic and wastewater treatment systems to supply oxygen to aerobic bacteria. These microorganisms use oxygen to help break down organic matter during the biological treatment process.\u003c\/p\u003e\n\u003cp\u003eA suitable septic tank air pump or wastewater aerator can provide a continuous airflow to the aeration chamber, supporting the operation of a compatible treatment system.\u003c\/p\u003e\n\u003cp\u003eEnviro ET air pumps are available in a range of airflow capacities for different wastewater applications. When choosing a replacement pump, it is important to match the original equipment specifications and the requirements of the treatment system.\u003c\/p\u003e\n\u003cp\u003eBefore purchasing, check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eThe required airflow in litres per minute.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe operating pressure required by the treatment system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe air connection diameter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical supply and power consumption.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe pump model specified by the treatment system manufacturer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot every air pump is suitable for every septic tank or sewage treatment plant. Always check compatibility with the installed system before replacing an existing unit.\u003c\/p\u003e\n\u003ch2\u003eEnviro ET Linear Diaphragm Air Pumps\u003c\/h2\u003e\n\u003cp\u003eThe Enviro ET range offers linear diaphragm air pumps for applications requiring a dependable source of oil-free air.\u003c\/p\u003e\n\u003cp\u003eThese pumps use an electromagnetic mechanism to move a diaphragm, drawing in and delivering air through the pump chamber. This design provides airflow without the need for oil lubrication.\u003c\/p\u003e\n\u003cp\u003eFeatures across the range include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOil-free air delivery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompact pump construction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAirflow options for different applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModels designed for continuous or intermittent operation, subject to the manufacturer's specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eServiceable components and compatible maintenance kits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptions for pond aeration and wastewater treatment applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe range includes different models with airflow capacities from approximately 30 litres per minute through to 300 litres per minute and beyond in selected configurations.\u003c\/p\u003e\n\u003cp\u003eIndividual models differ in maximum airflow, operating pressure, electrical consumption, dimensions and outlet connection size. Always consult the relevant product specifications rather than choosing a pump based on its litres-per-minute rating alone.\u003c\/p\u003e\n\u003ch2\u003eChoosing the Correct Air Pump\u003c\/h2\u003e\n\u003cp\u003eSelecting an air pump involves more than matching the advertised airflow capacity. The pump must provide sufficient air at the pressure required by your application.\u003c\/p\u003e\n\u003cp\u003eConsider the following factors when comparing models.\u003c\/p\u003e\n\u003ch3\u003e1. Airflow Capacity\u003c\/h3\u003e\n\u003cp\u003eAirflow is normally measured in litres per minute (LPM). It indicates the volume of air the pump can deliver under specified operating conditions.\u003c\/p\u003e\n\u003cp\u003eSmaller ponds or individual aeration points may require a lower-capacity pump, while larger ponds, multiple diffusers and wastewater systems may require greater airflow.\u003c\/p\u003e\n\u003ch3\u003e2. Operating Pressure\u003c\/h3\u003e\n\u003cp\u003eOperating pressure is particularly important when air must travel through submerged diffusers or be delivered into a wastewater treatment chamber.\u003c\/p\u003e\n\u003cp\u003eThe deeper the diffuser is positioned underwater, the greater the pressure required to overcome the water depth and resistance within the air distribution system.\u003c\/p\u003e\n\u003cp\u003eCheck the pump's airflow performance at the required pressure. A pump's maximum free-air capacity may not represent the airflow it can deliver in your installation.\u003c\/p\u003e\n\u003ch3\u003e3. Power Consumption\u003c\/h3\u003e\n\u003cp\u003ePower consumption is measured in watts (W). If your pump is intended to operate continuously, energy efficiency is an important consideration.\u003c\/p\u003e\n\u003cp\u003eCompare the electrical consumption of suitable models alongside their airflow and pressure performance.\u003c\/p\u003e\n\u003ch3\u003e4. Connection Size\u003c\/h3\u003e\n\u003cp\u003eCheck the air outlet diameter and the size of the pipework or hose used by your existing installation. The correct connection is important for straightforward installation and reliable airflow.\u003c\/p\u003e\n\u003ch3\u003e5. Installation Environment\u003c\/h3\u003e\n\u003cp\u003eConsider where the pump will be installed and whether it needs protection from rain, moisture, dust or extreme temperatures. Follow the manufacturer's installation instructions, particularly regarding electrical safety and ventilation.\u003c\/p\u003e\n\u003ch2\u003eEnviro ET Air Pump Models and Capacities\u003c\/h2\u003e\n\u003cp\u003eThe Enviro ET collection includes several models to suit different airflow requirements.\u003c\/p\u003e\n\u003cp\u003eDepending on the model, the range includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eET30:\u003c\/strong\u003e A compact option for smaller aeration requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eET40 and ET60:\u003c\/strong\u003e Lower-capacity models for suitable pond and wastewater applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eET80 and ET100:\u003c\/strong\u003e Higher airflow options for installations requiring increased air delivery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eET120 and ET150:\u003c\/strong\u003e Models for larger aeration requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eET200, ET250 and ET300:\u003c\/strong\u003e Higher-capacity air pumps for applications requiring substantial airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe precise operating pressure, power consumption and airflow characteristics vary between models and configurations. Compare the individual product specifications to select the appropriate pump.\u003c\/p\u003e\n\u003ch2\u003eAir Pump Service Kits and Replacement Parts\u003c\/h2\u003e\n\u003cp\u003eRegular maintenance helps keep an air pump operating reliably. Diaphragms, valves and filters are service components that may require replacement as part of routine maintenance.\u003c\/p\u003e\n\u003cp\u003eGroAqua stocks service kits for selected Enviro ET models, making it easier to maintain an existing pump rather than replacing the complete unit when compatible service parts are available.\u003c\/p\u003e\n\u003cp\u003eDepending on the pump model, a service kit may include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eReplacement diaphragms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAir filters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eValves.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOther model-specific components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe recommend checking your pump's exact model number before ordering a service kit. Components can differ between models, so a kit intended for one ET pump may not be suitable for another.\u003c\/p\u003e\n\u003cp\u003eGroAqua recommends servicing applicable ET pumps approximately every 18 months. Always follow the manufacturer's maintenance instructions and consider operating conditions when planning maintenance.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose GroAqua for Air Pumps?\u003c\/h2\u003e\n\u003cp\u003eAt GroAqua, we supply air pumps and associated components for pond aeration, aquaculture and wastewater applications.\u003c\/p\u003e\n\u003cp\u003eOur collection includes Enviro ET air pumps in a range of airflow capacities, together with compatible service kits and replacement components. Whether you are installing a new aeration system or maintaining an existing pump, our range provides options for different applications and equipment requirements.\u003c\/p\u003e\n\u003cp\u003eBrowse our air pumps and service kits to find a suitable solution for your pond, septic tank or wastewater treatment system.\u003c\/p\u003e","products":[{"product_id":"hailea-et30-30lpm-air-pump","title":"Charles Austen Enviro ET30 30 L\/min Linear Diaphragm Air Pump","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCharles Austen Enviro ET30\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact, energy-efficient linear diaphragm air pump designed to provide a dependable supply of oil-free air for pond aeration, wastewater treatment and other low-pressure air applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDelivering up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e30 litres of air per minute at 0.12 bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the ET30 combines reliable airflow with a low electrical power consumption of just \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25 W\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Its robust, weather-resistant construction makes it suitable for indoor and outdoor installations where consistent aeration is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ET30 is part of the Charles Austen enviro ET air pump range, developed for applications that benefit from continuous air delivery, including pond aeration and wastewater treatment systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features and Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e30 L\/min airflow:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides a steady supply of air for aeration applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLow-pressure performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rated airflow of 30 L\/min at 0.12 bar.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEnergy efficient:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Uses only 25 W of electrical power.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOil-free air delivery:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for applications requiring a clean air supply without oil lubrication.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLinear diaphragm technology:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for reliable, consistent air delivery.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeather-resistant construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for appropriate indoor and outdoor installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Measures approximately 208 × 150 × 178 mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLow-noise operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Manufacturer literature lists noise levels as low as 35 dB(A).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eServiceable design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Replacement service kits are available to support ongoing maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContinuous-duty suitability:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for applications requiring sustained aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eReliable Air Supply for Pond Aeration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Enviro ET30 is suitable for pond aeration systems where a consistent air supply is needed to support water movement and oxygen transfer.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eConnected to suitable air diffusers or air stones, the pump distributes air into the water, creating bubbles and circulation. This helps increase contact between water and air and supports dissolved oxygen levels.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePond aeration can be particularly valuable in:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKoi ponds.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eGarden ponds.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFish-holding systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAquaculture installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePond filtration systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe appropriate pump size depends on pond volume, water depth, diffuser resistance and the number of air outlets. The ET30 should be selected according to the required airflow at the operating pressure, rather than airflow alone.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSuitable for Wastewater and Septic Tank Aeration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Enviro ET series is also designed for wastewater aeration applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSupplying air to an appropriately designed treatment system helps maintain oxygen availability for aerobic microorganisms involved in biological wastewater treatment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ET30 can be considered for suitable:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDomestic wastewater treatment systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSeptic treatment installations designed for aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSmall wastewater aeration applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBiological treatment systems requiring a low-pressure air supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eAlways check the airflow and pressure requirements of the treatment system before selecting the pump.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEfficient 25 W Operation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ET30 delivers its rated airflow while consuming only 25 W of electrical power.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes it an attractive option for installations where the pump needs to operate for extended periods.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts principal performance specification is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e30 litres per minute at 0.12 bar\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual airflow changes with operating pressure and the resistance of the connected air distribution system. Long air lines, small-diameter pipework, deep water and restrictive diffusers can all affect delivered airflow.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeather-Resistant and Compact Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Enviro ET30 has a robust, compact housing designed for use in suitable indoor and outdoor environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts dimensions are approximately:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e208 × 150 × 178 mm (L × W × H)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe compact design makes it easier to position close to a pond filtration system, wastewater treatment installation or other aeration equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor outdoor installations, position the pump in a location that protects its electrical connection and prevents water ingress, flooding or excessive exposure to standing water. Follow the manufacturer's installation instructions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMaintenance and Service Kits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Enviro ET30 is designed to be serviceable, with replacement service kits available.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCharles Austen recommends servicing its enviro pumps at least every \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18 months\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Regular maintenance helps maintain reliable operation and allows wear components to be replaced before they cause a loss of performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ET30 service kit includes components such as diaphragms and filters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMaintenance should be carried out according to the manufacturer's service instructions, with the electrical supply disconnected before opening the pump.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eValue\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCharles Austen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eenviro ET Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eET30\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePump type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLinear diaphragm air pump\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum rated airflow\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30 L\/min\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated airflow pressure\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.12 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e25 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutlet connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e14 mm (confirm fitting supplied)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions (L × W × H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e208 × 150 × 178 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 4 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConstruction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRobust, weather-resistant housing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAir delivery\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOil-free\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRecommended service interval\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAt least every 18 months\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePond aeration and wastewater aeration\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan\u003eWhat's Included?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe manufacturer's ET-series documentation identifies a rubber elbow connector as a supplied fitting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease check the exact package configuration with the supplier before specifying additional brass fittings, hose clips or airline accessories as included.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the Charles Austen Enviro ET30 Right for You?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eChoose the Enviro ET30 if you need a compact, energy-efficient air pump delivering up to 30 L\/min for pond aeration or a suitable wastewater treatment application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is particularly suitable for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSmall and medium pond aeration arrangements where 30 L\/min is sufficient.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKoi pond filtration systems with appropriately sized diffusers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWastewater treatment systems requiring a continuous low-pressure air supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInstallations where low electrical consumption is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUsers looking for a serviceable alternative to inexpensive disposable air pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBefore purchasing, check the required airflow, working pressure, pipe diameter and diffuser resistance of your installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChoose the Charles Austen Enviro ET30 for dependable, energy-efficient aeration with 30 L\/min rated airflow.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":31574170927158,"sku":"CA-ET30","price":65.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/charles-austen-enviro-et30-ca-et30-2142138.png?v=1757079866"},{"product_id":"hailea-et40-air-pump","title":"Charles Austen Enviro ET40 Air Pump – 40 L\/min","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCharles Austen Enviro ET40\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a powerful, oil-free linear diaphragm air pump designed to provide a dependable supply of air for pond aeration, aquaculture, hydroponic growing systems and other low-pressure applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDelivering a rated airflow of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e40 litres per minute at 0.12 bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the ET40 is well suited to installations requiring more air capacity than a smaller pond or aquarium air pump can provide. It can supply multiple air stones or diffusers through a suitable distribution manifold, making it a practical choice for larger water systems and multi-outlet setups.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUsing Charles Austen's energy-efficient Green Drive technology, the ET40 combines high airflow with a relatively low power consumption of just 30W. Its compact, weather-resistant construction makes it suitable for a range of indoor and outdoor installations when correctly positioned and protected.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e40 L\/min airflow:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rated air delivery of 40 litres per minute at 0.12 bar.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEnergy efficient:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 30W power consumption.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOil-free air supply:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Linear diaphragm pump technology provides clean air without oil lubrication.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeather-resistant construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Robust, compact housing for suitable indoor and outdoor installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContinuous or intermittent operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for applications requiring regular or continuous aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMultiple diffuser applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can supply several air stones or diffusers when connected to an appropriately sized manifold.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eServiceable design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Replacement service kits are available to support routine maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRubber elbow supplied:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Manufacturer information identifies a rubber elbow as part of the ET-series fitting arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eSuitable applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Enviro ET40 can be used in a variety of aeration applications, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePonds and koi ponds\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eProvides an air supply for pond diffusers, helping to circulate and aerate pond water. The actual aeration performance will depend on pond depth, diffuser selection and system back pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHydroponics and deep water culture (DWC)\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eSuitable for supplying air stones and air domes in hydroponic systems. Its 40 L\/min output makes it useful where several growing containers or aeration points need to be supplied from one pump.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAquaculture and fish systems\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eCan provide air to multiple aeration points in suitable fish-rearing and aquaculture installations. Select the diffuser arrangement and airflow distribution to suit the system's oxygen requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWastewater aeration\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe ET series is also used in wastewater applications where a reliable, low-pressure air supply is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eET40\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePump type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLinear diaphragm air pump\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated airflow\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e40 L\/min\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated pressure point\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.12 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutlet connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e14mm – confirm against supplied unit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e218 × 156 × 182mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAir supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOil-free\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConstruction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompact, weather-resistant housing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIntermittent or continuous applications\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan\u003eInstallation and maintenance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInstall the pump on a stable, suitable surface in accordance with the manufacturer's instructions. Use compatible airline, fittings and diffusers, and ensure that the total system resistance does not exceed the pump's operating capability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor multiple outlets, a suitable air distribution manifold can help divide the airflow between individual diffusers. The airflow available at each outlet will depend on the number of outlets, airline dimensions, diffuser resistance and operating pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCharles Austen recommends servicing Enviro pumps at least every \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18 months\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Replacement service kits are available and routine maintenance helps keep the pump operating correctly.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy choose the Charles Austen Enviro ET40?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ET40 is a practical choice when a smaller air pump does not provide enough airflow for a larger pond, hydroponic system or multi-diffuser installation. Its 40 L\/min rated output, 30W power consumption and serviceable construction make it a useful option for users who need dependable, higher-volume aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChoose the Charles Austen Enviro ET40 for a compact, oil-free air pump delivering 40 litres per minute for pond, aquaculture and hydroponic applications.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":31574170959926,"sku":"CA-ET40","price":76.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/charles-austen-enviro-et40-ca-et40-4891116.png?v=1757079866"},{"product_id":"hailea-et60-air-pump","title":"Charles Austen Enviro ET60 Air Pump – 60 L\/min","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCharles Austen Enviro ET60\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-output, oil-free linear diaphragm air pump designed for pond aeration, koi ponds, hydroponic systems, aquaculture and other applications requiring a dependable supply of air.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDelivering a rated airflow of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e60 litres per minute at 0.12 bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the ET60 is designed for larger installations and systems that need more airflow than smaller pond and aquarium air pumps can provide. It can supply multiple air stones or diffusers through a suitable distribution manifold, making it a practical solution for larger ponds, growing systems and water treatment applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ET60 combines a robust, compact and weather-resistant design with Charles Austen's energy-efficient Green Drive technology. With a power consumption of 55W, it provides a substantial airflow capacity for regular or continuous aeration applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e60 L\/min rated airflow:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Delivers up to 60 litres per minute at the manufacturer's specified pressure point of 0.12 bar.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e55W power consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed to provide high airflow with relatively low electrical consumption for its output class.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOil-free air supply:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Linear diaphragm pump technology operates without oil lubrication.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e18mm air outlet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for connection to compatible airline fittings and air distribution systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeather-resistant construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Robust housing designed for suitable indoor and outdoor installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMultiple diffuser applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can supply several air stones or diffusers when connected to an appropriately sized manifold.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eServiceable design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compatible replacement service kits are available to support routine maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRubber elbow supplied:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Manufacturer information identifies a rubber elbow as part of the ET-series fitting arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSuitable applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003ePond and koi pond aeration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Enviro ET60 provides a substantial air supply for larger ponds and koi systems. Connect it to compatible pond diffusers to introduce air into the water and support circulation and oxygen transfer.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe number and type of diffusers required will depend on pond depth, volume, diffuser resistance and the desired aeration level.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHydroponics and deep water culture\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ET60 is suitable for hydroponic installations requiring a higher-volume air supply. It can feed multiple air stones, air domes or other compatible diffusers, helping to aerate nutrient solution in deep water culture systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAquaculture and fish-rearing systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor suitable aquaculture installations, the ET60 can provide air to multiple aeration points. Correct diffuser selection and airflow distribution are important to ensure that the system receives the required aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWastewater aeration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Charles Austen Enviro ET series is also designed for wastewater applications. Aeration can support aerobic biological processes by supplying air to the treatment system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eET60\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCharles Austen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEnviro ET Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eET60\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePump type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOil-free linear diaphragm air pump\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated airflow\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e60 L\/min\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated pressure point\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.12 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e55W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutlet connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions (L × W × H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e203 × 165 × 153mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConstruction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompact, weather-resistant housing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAir supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOil-free\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaintenance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eServiceable; replacement kits available\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eInstallation and maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eInstall the pump on a stable surface in a suitable, ventilated location, following the manufacturer's installation instructions. Although the pump has weather-resistant construction, it should be installed and protected appropriately for its environment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUse compatible airline, fittings and diffusers. For installations with several aeration points, an air distribution manifold can divide the output between individual outlets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe pump's actual airflow at each diffuser will depend on operating pressure, water depth, airline dimensions, diffuser resistance and the number of connected outlets. The rated 60 L\/min figure should therefore be treated as a manufacturer specification at 0.12 bar, rather than a guaranteed flow at every outlet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCharles Austen recommends servicing Enviro pumps at least every \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18 months\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Replacement service kits are available to support routine maintenance and help maintain correct operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy choose the Charles Austen Enviro ET60?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe ET60 is a strong option for pond owners, hydroponic growers and water-system operators who need a higher-volume air supply from a compact, serviceable pump.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a rated output of 60 L\/min, 55W power consumption and an 18mm outlet, it is particularly suited to larger aeration systems and installations supplying multiple diffusers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChoose the Charles Austen Enviro ET60 for dependable, high-volume aeration in ponds, koi systems, hydroponics and other suitable low-pressure air applications.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":31574171058230,"sku":"CA-ET60","price":89.14,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-enviro-et60-ca-et60-8437334.jpg?v=1757079865"},{"product_id":"hailea-et80-80lpm-air-pump","title":"Charles Austen Enviro ET80 Air Pump – 80 L\/min","description":"\u003ch1\u003e\u003cspan\u003eCharles Austen Enviro ET80 Air Pump – 80 L\/min\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCharles Austen Enviro ET80\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-output, oil-free linear diaphragm air pump designed for larger pond aeration systems, koi ponds, hydroponics, aquaculture and other applications requiring a substantial and dependable supply of air.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a rated airflow of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e80 litres per minute\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the ET80 is designed for installations where smaller air pumps may not provide sufficient capacity. It can supply multiple air stones or diffusers through a suitable distribution manifold, making it a practical choice for larger ponds, multi-tank hydroponic systems and commercial aeration applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ET80 combines Charles Austen's Green Drive technology with a robust, compact and weather-resistant construction. Its 85W power consumption makes it suitable for users looking for a high-volume air supply from a serviceable pump designed for regular operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e80 L\/min rated airflow:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-volume air delivery for larger aeration installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e85W power consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed to deliver substantial airflow for its power rating.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOil-free air supply:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Linear diaphragm pump technology operates without oil lubrication.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e18mm outlet connection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for compatible airline fittings and distribution systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeather-resistant construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Robust housing for suitable indoor and outdoor installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMultiple diffuser applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can supply several air stones or diffusers when connected to an appropriately sized manifold.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGreen Drive technology:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed to provide an energy-efficient air supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eServiceable design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Replacement service kits are available to support routine maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRubber elbow supplied:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The manufacturer identifies a rubber elbow as part of the ET-series fitting arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSuitable applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eLarge pond and koi pond aeration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Enviro ET80 provides a high-volume air supply for larger ponds and koi installations. It can be connected to compatible pond diffusers to introduce air into the water and support circulation and oxygen transfer.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts output makes it particularly useful where several aeration points are required. The number and type of diffusers should be selected according to pond depth, water volume, diffuser resistance and the required aeration performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHydroponics and deep water culture\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ET80 is suitable for larger hydroponic installations that require a substantial supply of air to nutrient solutions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt can supply multiple air stones, air domes or compatible diffusers through a suitable manifold. This makes it a useful option for growers operating several deep water culture containers or larger growing systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAquaculture and fish-rearing systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor suitable aquaculture installations, the ET80 can provide air to multiple aeration points. Correct diffuser selection and airflow distribution are important to ensure that the system receives the required aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWastewater aeration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Charles Austen Enviro ET range is also used in wastewater applications where a reliable low-pressure air supply is required. Aeration can support aerobic biological processes by supplying air to the treatment system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eET80\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCharles Austen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEnviro ET Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eET80\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePump type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLinear diaphragm air pump\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAir supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOil-free\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated airflow\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e80 L\/min\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated pressure\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eConfirm before publication: 0.10 or 0.12 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e85W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutlet connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions (L × W × H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e210 × 185 × 171mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 7kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSupply voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e220–240V AC, 50Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConstruction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompact, weather-resistant housing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eInstallation and maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eInstall the pump on a stable surface in a suitable location, following the manufacturer's installation instructions. Although the ET80 has weather-resistant construction, it should be positioned and protected appropriately for its operating environment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUse compatible airline, fittings and diffusers. For installations with several aeration points, an air distribution manifold can divide the output between individual outlets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual airflow at each diffuser depends on operating pressure, water depth, airline dimensions, diffuser resistance and the number of connected outlets. The rated 80 L\/min figure should therefore be considered alongside the pump's specified operating pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCharles Austen recommends servicing Enviro pumps at least every \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18 months\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Replacement service kits are available to support routine maintenance and help maintain correct operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy choose the Charles Austen Enviro ET80?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe ET80 is a strong option for pond owners, hydroponic growers and water-system operators who need more airflow than smaller aeration pumps can provide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith its 80 L\/min rated output, 85W power consumption, 18mm outlet and serviceable construction, it is particularly suited to larger aeration systems and installations supplying multiple diffusers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChoose the Charles Austen Enviro ET80 for high-volume aeration in larger ponds, koi systems, hydroponics and other suitable low-pressure air applications.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":31574173024310,"sku":"CA-ET80","price":108.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-et80-blower-air-pump-ca-et80-9926251.jpg?v=1757079861"},{"product_id":"hailea-et100-100lpm-air-pump","title":"Charles Austen Enviro ET100 Air Pump – 100 L\/min","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCharles Austen Enviro ET100\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-capacity, oil-free linear diaphragm air pump designed for large pond aeration systems, koi ponds, hydroponics, aquaculture and other applications requiring a substantial supply of air.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDelivering a rated airflow of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100 litres per minute at 0.10 bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the ET100 is designed for installations where smaller air pumps cannot provide sufficient airflow. Its high output makes it suitable for supplying multiple air stones or diffusers through a correctly sized distribution manifold.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ET100 combines Charles Austen's Green Drive technology with a robust, compact and weather-resistant construction. With a power consumption of 105W, it provides a high-volume air supply for larger aeration installations and applications requiring regular or continuous operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e100 L\/min rated airflow:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-volume air delivery for larger aeration systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e105W power consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed to provide substantial airflow for its output class.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e0.10 bar rated pressure point:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Published airflow specification for the ET100 model.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOil-free air supply:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Linear diaphragm pump technology operates without oil lubrication.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e18mm outlet connection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compatible with suitable airline fittings and distribution systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeather-resistant construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Robust housing for appropriate indoor and outdoor installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMultiple diffuser applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can supply several air stones or diffusers through a suitable manifold.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGreen Drive technology:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed to provide an efficient air supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eServiceable design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Replacement service kits are available to support routine maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContinuous or intermittent operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for applications requiring regular or continuous aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSuitable applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eLarge pond and koi pond aeration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Enviro ET100 provides a substantial air supply for larger garden ponds and koi installations. It can be connected to compatible pond diffusers to introduce air into the water and support oxygen transfer and circulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts 100 L\/min output makes it particularly useful where several aeration points are required. Select the number and type of diffusers according to pond depth, water volume, diffuser resistance and the aeration requirements of the system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHydroponics and deep water culture\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ET100 is suitable for larger hydroponic installations requiring a high-volume supply of air to nutrient solutions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt can supply multiple air stones, air domes or compatible diffusers through a suitable distribution manifold. This makes it useful for larger deep water culture systems and installations operating several growing containers.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAquaculture and fish-rearing systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor suitable aquaculture installations, the ET100 can provide air to multiple aeration points. Correct diffuser selection and airflow distribution are important to ensure that the system receives the required aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWastewater aeration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Charles Austen Enviro ET range is also used in wastewater applications where a reliable, low-pressure air supply is required. Aeration can support aerobic biological processes by supplying air to the treatment system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eET100\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCharles Austen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEnviro ET Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eET100\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePump type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLinear diaphragm air pump\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAir supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOil-free\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated airflow\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100 L\/min\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated pressure point\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.10 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e105W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutlet connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSupply voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e220–240V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSupply frequency\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions (L × W × H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e238 × 196 × 177mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 8.5kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConstruction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompact, weather-resistant housing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eInstallation and maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eInstall the pump on a stable surface in a suitable location, following the manufacturer's instructions. Although the ET100 has weather-resistant construction, it should be positioned and protected appropriately for its operating environment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUse compatible airline, fittings and diffusers. For installations with several aeration points, an air distribution manifold can divide the output between individual outlets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual airflow at each diffuser depends on operating pressure, water depth, airline dimensions, diffuser resistance and the number of connected outlets. The rated 100 L\/min figure should therefore be considered alongside the specified operating pressure, rather than treated as a guaranteed flow at every diffuser.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCharles Austen Enviro pumps are designed to be serviced, with replacement service kits available. Regular maintenance is important for pumps used in continuous-duty applications. GroAqua recommends servicing its ET pumps approximately every 18 months.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy choose the Charles Austen Enviro ET100?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe ET100 is a strong option for pond owners, hydroponic growers and water-system operators who need more airflow than smaller aeration pumps can provide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith its 100 L\/min rated output, 105W power consumption, 18mm outlet and serviceable construction, it is particularly suited to larger installations and systems supplying multiple diffusers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChoose the Charles Austen Enviro ET100 for high-volume aeration in large ponds, koi systems, hydroponics, aquaculture and other suitable low-pressure air applications.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":31574173057078,"sku":"CA-ET100","price":128.57,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-et100-pond-pump-ca-et100-6023213.jpg?v=1757079863"},{"product_id":"hailea-et120-120lpm-air-pump","title":"Charles Austen Enviro ET120 Air Pump – 120 L\/min","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCharles Austen Enviro ET120\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-capacity, oil-free air pump designed for large pond aeration systems, koi ponds, hydroponics, aquaculture and other applications requiring a substantial and dependable supply of air.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDelivering a rated airflow of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e120 litres per minute at 0.12 bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the ET120 is designed for installations where smaller air pumps cannot provide sufficient capacity. Its high-volume output makes it suitable for supplying multiple air stones or diffusers through a correctly sized air distribution manifold.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ET120 combines Charles Austen's Green Drive technology with a robust, compact and weather-resistant construction. It is designed for applications requiring regular or continuous aeration and offers a serviceable alternative to smaller, lower-output air pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e120 L\/min rated airflow:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-volume air delivery for larger aeration installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e125W power consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e GroAqua's listed power rating; confirm against the supplied model revision.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e0.12 bar rated pressure point:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Current Charles Austen ET-series airflow specification.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOil-free air supply:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed to provide air without oil lubrication.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e18mm outlet connection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for compatible airline fittings and distribution systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeather-resistant construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Robust housing for appropriate indoor and outdoor installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMultiple diffuser applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can supply several air stones or diffusers through a suitable manifold.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGreen Drive technology:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed to provide an energy-efficient air supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eServiceable design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Replacement service kits are available to support routine maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRegular or continuous operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for applications requiring ongoing aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSuitable applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eLarge pond and koi pond aeration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Enviro ET120 provides a substantial air supply for large ponds and koi installations. Connect it to compatible pond diffusers to introduce air into the water and support oxygen transfer and circulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts 120 L\/min output makes it suitable for systems requiring several aeration points. Select the number and type of diffusers according to pond depth, water volume, diffuser resistance and the required aeration performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHydroponics and deep water culture\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ET120 is suitable for larger hydroponic installations requiring a high-volume supply of air to nutrient solutions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt can supply multiple air stones, air domes or compatible diffusers through an appropriately sized distribution manifold. This makes it a useful option for commercial growing systems and installations operating multiple deep-water culture containers.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAquaculture and fish-rearing systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor suitable aquaculture installations, the ET120 can provide air to multiple aeration points. Correct diffuser selection and airflow distribution are important to ensure the system receives the required aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWastewater aeration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Charles Austen Enviro range is designed for applications including wastewater aeration. Supplying air to a suitable treatment system can support aerobic biological processes by increasing oxygen availability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eET120\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCharles Austen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEnviro ET Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eET120\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePump type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOil-free air pump\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated airflow\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120 L\/min\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated pressure point\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.12 bar – confirm model revision\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e125W – verify against supplied unit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutlet connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSupply voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e220–240V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSupply frequency\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions (L × W × H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e265 × 215 × 198mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 9.5kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConstruction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompact, weather-resistant housing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eInstallation and maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eInstall the pump on a stable surface in a suitable location, following the manufacturer's instructions. Although the ET120 has weather-resistant construction, it should be positioned and protected appropriately for its operating environment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUse compatible airline, fittings and diffusers. For installations with several aeration points, an air distribution manifold can divide the output between individual outlets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual airflow at each diffuser depends on operating pressure, water depth, airline dimensions, diffuser resistance and the number of connected outlets. The rated 120 L\/min figure should therefore be considered alongside the specified operating pressure, rather than treated as a guaranteed flow at every diffuser.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCharles Austen recommends servicing Enviro pumps at least every \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18 months\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Replacement service kits are available to support routine maintenance. This is particularly important for pumps used regularly or continuously.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy choose the Charles Austen Enviro ET120?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe ET120 is a strong option for pond owners, hydroponic growers and water-system operators who need a high-volume air supply for larger installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith its 120 L\/min rated airflow, 18mm outlet and serviceable construction, it is particularly suited to larger aeration systems and installations supplying multiple diffusers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChoose the Charles Austen Enviro ET120 for high-volume aeration in large ponds, koi systems, hydroponics, aquaculture and other suitable low-pressure air applications.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":31574173155382,"sku":"CA-ET120","price":139.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-enviro-et120-blower-ca-et120-1706224.jpg?v=1757079863"},{"product_id":"hailea-et300-300lpm-air-pump","title":"Charles Austen Enviro ET300 300 LPM Air Blower","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCharles Austen Enviro ET300\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-capacity, oil-free air blower designed to provide powerful, reliable airflow for large-scale aeration systems. Delivering up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e300 litres per minute at 0.20 bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, it is suited to demanding applications where a substantial and consistent supply of air is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePart of the Enviro ET Double Series, the ET300 is designed for applications including wastewater treatment, sewage treatment plants, large pond aeration systems and other installations requiring high-volume airflow. Its compact, weatherproof construction provides a practical alternative to larger or noisier rotary vane compressors.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh-capacity airflow for demanding applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWith a rated airflow of 300 L\/min at 0.20 bar, the ET300 can supply air to suitably designed diffuser and manifold systems. It is particularly useful in larger installations where the airflow demand may otherwise require multiple smaller pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe actual airflow delivered will depend on operating pressure, pipework, diffuser resistance and the configuration of the aeration system. For best results, ensure that the blower is correctly matched to the total system requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eOil-free air supply\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ET300 uses a diaphragm-based pumping design to provide an oil-free air supply. This makes it suitable for applications where an oil-free source of air is preferred, including pond and wastewater aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRobust construction and serviceability\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for demanding operating environments, the Enviro ET300 features a robust, weatherproof enclosure suitable for appropriate indoor or outdoor installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe pump is serviceable, with replacement service kits available to help maintain performance and extend its working life. Charles Austen recommends servicing Enviro pumps at least every 18 months.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTypical applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLarge sewage treatment and wastewater aeration systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCommercial pond aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLarge fish ponds and aquatic installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAquaculture and fish-holding systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHydroponic systems requiring high-volume air supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReplacement of suitable rotary vane compressors.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCharles Austen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct series\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEnviro ET Double Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eET300\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum rated airflow\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e300 L\/min\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated pressure\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.20 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e275W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutlet connector\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e26mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions (L × W × H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e348.5 × 230.5 × 219mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 18kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNoise level\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e40 dB(A), manufacturer specification\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePump type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOil-free diaphragm air blower\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan\u003eInstallation and maintenance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ET300 has a 26mm outlet connection. Ensure that the connecting pipework, manifold and diffusers are appropriately sized for the required airflow and operating pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor continued performance, follow the manufacturer's installation and maintenance guidance. Charles Austen recommends servicing Enviro pumps at least every 18 months, with service kits available for routine maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChoose the Charles Austen Enviro ET300 when your installation needs high-volume, oil-free airflow from a robust, serviceable air blower.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":31574174138422,"sku":"CA-ET300","price":648.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-enviro-et300-air-pump-ca-et300-7412370.jpg?v=1757079860"},{"product_id":"hailea-enviro-eta-pro-series-air-pumps","title":"Hailea  Enviro ETA Pro Series Air Pumps","description":"\u003cp\u003e\u003cspan\u003eThe ET series range of air pumps ensures that there is plenty of water movement in wastewater applications; this boosts oxygen levels in the water, allowing aerobic bacteria to decompose. When used in medical applications, the ET series provides a high flow at low pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cp\u003eRobust and compact construction - weatherproof\u003cbr\u003e Green drive technology offers energy efficient motors meaning low power consumption\u003cbr\u003e Supplied with a rubber elbow for easy fitting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e Model\u003c\/td\u003e\n\u003ctd\u003eFlow\u003c\/td\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eET40A\u003c\/td\u003e\n\u003ctd\u003e40lpm @ 0.12bar\u003c\/td\u003e\n\u003ctd\u003e18mm\u003c\/td\u003e\n\u003ctd\u003e30w\u003c\/td\u003e\n\u003ctd\u003e220 x 155 x 140mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eET60A\u003c\/td\u003e\n\u003ctd\u003e60lpm\u003cspan data-mce-fragment=\"1\"\u003e @ 0.12bar\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e55w\u003c\/td\u003e\n\u003ctd\u003e253 x 165 x 183mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eET80A\u003c\/td\u003e\n\u003ctd\u003e80lpm\u003cspan data-mce-fragment=\"1\"\u003e @ 0.12bar\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e85w\u003c\/td\u003e\n\u003ctd\u003e210 x 185 x 201mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eET100A\u003c\/td\u003e\n\u003ctd\u003e100lpm\u003cspan data-mce-fragment=\"1\"\u003e @ 0.12bar\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e105w\u003c\/td\u003e\n\u003ctd\u003e238 x 196 x 207mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eET120A\u003c\/td\u003e\n\u003ctd\u003e120lpm\u003cspan data-mce-fragment=\"1\"\u003e @ 0.12bar\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e125w\u003c\/td\u003e\n\u003ctd\u003e315 x 215x 228mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eET150A\u003c\/td\u003e\n\u003ctd\u003e150lpm\u003cspan data-mce-fragment=\"1\"\u003e @ 0.12bar\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e125w\u003c\/td\u003e\n\u003ctd\u003e346 x 200 x 222mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eET200A\u003c\/td\u003e\n\u003ctd\u003e200lpm\u003cspan data-mce-fragment=\"1\"\u003e @ 0.12bar\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e210w\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-mce-fragment=\"1\"\u003e346 x 200 x 222mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eET250A\u003c\/td\u003e\n\u003ctd\u003e250lpm\u003cspan data-mce-fragment=\"1\"\u003e @ 0.12bar\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e26mm\u003c\/td\u003e\n\u003ctd\u003e221w\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e348 x 231 x 219mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eET300\u003c\/td\u003e\n\u003ctd\u003e300lpm\u003cspan data-mce-fragment=\"1\"\u003e @ 0.12bar\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e26mm\u003c\/td\u003e\n\u003ctd\u003e221w\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e348 x 231 x 219mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003ca title=\"Hailea Environ ETA Series Air Pumps Technical Data\" href=\"https:\/\/drive.google.com\/file\/d\/1s9wq5EGOMgea9nP-vdriMGK7E0i5TOQf\/view\" target=\"_blank\"\u003eTechnical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"enviro","offers":[{"title":"ET40A","offer_id":55989150286209,"sku":"CA-ET40A","price":114.0,"currency_code":"GBP","in_stock":true},{"title":"ET60A","offer_id":55989149532545,"sku":"CA-ET60A","price":126.0,"currency_code":"GBP","in_stock":true},{"title":"ET80A","offer_id":55989150155137,"sku":"CA-ET80A","price":142.28,"currency_code":"GBP","in_stock":true},{"title":"ET100A","offer_id":55966511038849,"sku":"CA-ET100A","price":161.15,"currency_code":"GBP","in_stock":true},{"title":"ET120A","offer_id":55989110833537,"sku":"CA-ET120A","price":179.15,"currency_code":"GBP","in_stock":true},{"title":"ET150A","offer_id":55989122335105,"sku":"CA-ET150A","price":471.43,"currency_code":"GBP","in_stock":true},{"title":"ET200A","offer_id":55989135704449,"sku":"CA-ET200A","price":514.28,"currency_code":"GBP","in_stock":true},{"title":"ET250A","offer_id":55989147959681,"sku":"CA-ET250A","price":658.28,"currency_code":"GBP","in_stock":true},{"title":"ET300A","offer_id":55989149368705,"sku":"CA-ET300A","price":737.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-enviro-eta-pro-series-air-pumps-ca-et40a-7666887.jpg?v=1757079690"},{"product_id":"hailea-et-series-air-pump-service-kit","title":"Hailea ET400 \/ ET500 Service Kit","description":"\u003cp\u003e\u003cspan\u003eThe service kit for the ET400 includes 4 diaphragms, 1 filter and 16 valves. At GroAqua we recommend your ET pump be serviced every 18 months.\u003c\/span\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":47751882309946,"sku":"CA-ET400-SERVICE","price":169.72,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/charles-austen-et400-et500-service-kit-ca-et400-service-2147527.png?v=1757079690"},{"product_id":"charles-austen-et150-pro-air-pump","title":"Charles Austen Enviro ET150 Pro Air Pump – 150 L\/min","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCharles Austen Enviro ET150 Pro Air Pump\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-output, oil-free air pump designed for reliable aeration in ponds, wastewater treatment systems and other applications requiring a substantial supply of air.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDelivering a rated airflow of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e150 litres per minute at 0.20 bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the ET150 Pro provides consistent airflow for suitably designed diffuser and distribution systems. Its robust, compact and weatherproof construction makes it suitable for a range of indoor and outdoor installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you are oxygenating a large pond, supplying air to a wastewater treatment system or maintaining circulation in an aquaculture installation, the ET150 offers a practical solution for demanding aeration requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHigh-output airflow for effective aeration\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eWith a rated output of 150 L\/min at 0.20 bar, the ET150 is designed for systems that need more airflow than smaller pond and aquarium air pumps can provide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt can supply air to appropriately sized diffusers and distribution manifolds, helping to circulate water and support oxygen transfer throughout an aeration system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual airflow at the diffuser will depend on operating pressure, water depth, pipework, diffuser resistance and the overall installation design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eOil-free air pump technology\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe ET150 uses an oil-free diaphragm pumping design to provide an air supply without an oil-lubricated compression chamber.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes it suitable for pond aeration, wastewater treatment and other applications where an oil-free air supply is preferred.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRobust, weatherproof construction\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Charles Austen Enviro range is designed with robust, compact construction and a weatherproof enclosure for appropriate indoor and outdoor installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts energy-efficient motor technology is designed to provide substantial airflow while keeping power consumption in consideration for continuous aeration applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSuitable applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe ET150 Pro can be used in a variety of aeration installations, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLarge garden and koi ponds.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePond filtration and biological filter aeration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWastewater treatment systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDomestic sewage treatment plants.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSeptic tank aeration systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAquaculture and fish-holding facilities.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHydroponic systems requiring high-volume airflow.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eEasy to maintain\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe ET150 is designed to be serviceable, with compatible replacement service kits available.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCharles Austen recommends servicing Enviro pumps at least every 18 months. For the Pro Series motor warranty, the manufacturer specifies annual servicing to validate the two-year motor warranty. Check the warranty conditions and service requirements before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCharles Austen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEnviro\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eET150 Pro\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated airflow\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150 L\/min\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated pressure\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.20 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutlet connector\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions (L × W × H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e256 × 200 × 222mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePump type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOil-free diaphragm air pump\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConstruction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRobust, weatherproof enclosure\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaintenance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer recommends servicing every 18 months\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePower consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the exact ET150 Pro production version before publishing a wattage figure, as published ET150 specifications vary.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eInstallation guidance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe ET150 has an 18mm outlet connection. Ensure that the airline, manifolds, connectors and diffusers are correctly sized for the required airflow.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor installations with multiple diffusers, use a suitably sized air distribution manifold and ensure that the combined system resistance does not exceed the pump's operating capabilities.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRegular servicing and the use of compatible replacement parts will help maintain reliable operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChoose the Charles Austen Enviro ET150 Pro when you need a robust, oil-free air pump delivering 150 litres per minute for pond aeration, wastewater treatment or other high-output aeration applications.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":54170881458561,"sku":"CA-ET150","price":373.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/charles-austen-et150-pro-air-pump-ca-et150-3746455.webp?v=1757078186"},{"product_id":"charles-austen-et100-service-kit","title":"Hailea ET100 Service Kit","description":"\u003cp\u003e\u003cspan\u003eThe service kit for the ET 100 includes 2 diaphragms, 1 filter and 1 magnet. At GroAqua we recommend your ET pump be service every 18 months.\u003c\/span\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":54385041310081,"sku":"CA-ET100-SERVICE","price":31.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-et250-et300-service-kit-ca-et250-service-6293005.jpg?v=1757078184"},{"product_id":"charles-austen-et120-service-kit","title":"Hailea ET120 Service Kit","description":"\u003cp\u003e\u003cspan\u003eThe service kit for the ET 120 includes 2 diaphragms, 1 filter and 1 magnet. At GroAqua we recommend your ET pump be service every 18 months.\u003c\/span\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":54387470467457,"sku":"CA-ET120-SERVICE","price":31.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-et250-et300-service-kit-ca-et250-service-6293005.jpg?v=1757078184"},{"product_id":"charles-austen-et40-service-kit","title":"Hailea ET40 Service Kit","description":"\u003cp\u003e\u003cspan\u003eThe service kit for the ET 40 includes 2 diaphragms, 1 filter and 1 magnet. At GroAqua we recommend your ET pump be service every 18 months.\u003c\/span\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":54387471647105,"sku":"CA-ET40-SERVICE","price":30.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-et250-et300-service-kit-ca-et250-service-6293005.jpg?v=1757078184"},{"product_id":"charles-austen-et30-service-kit","title":"Hailea ET30 Service Kit","description":"\u003cp\u003e\u003cspan\u003eThe service kit for the ET 30 includes 2 diaphragms, 1 filter and 1 magnet. At GroAqua we recommend your ET pump be service every 18 months.\u003c\/span\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":54387472335233,"sku":"CA-ET30-SERVICE","price":30.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-et250-et300-service-kit-ca-et250-service-6293005.jpg?v=1757078184"},{"product_id":"charles-austen-et60-service-kit","title":"Hailea ET60 Service Kit","description":"\u003cp\u003e\u003cspan\u003eThe service kit for the ET 60 includes 2 diaphragms, 1 filter and 1 magnet. At GroAqua we recommend your ET pump be service every 18 months.\u003c\/span\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":54387473121665,"sku":"CA-ET60-SERVICE","price":31.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-et250-et300-service-kit-ca-et250-service-6293005.jpg?v=1757078184"},{"product_id":"charles-austen-et80-etp60-service-kit","title":"Hailea ET80 Service Kit","description":"\u003cp\u003e\u003cspan\u003eThe service kit for the ET 80 includes 2 diaphragms, 1 filter and 1 magnet. At GroAqua we recommend your ET pump be service every 18 months.\u003c\/span\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":54387474530689,"sku":"CA-ET80-SERVICE","price":31.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/charles-austen-et250-et300-service-kit-ca-et250-service-6293005.jpg?v=1757078184"},{"product_id":"charles-austen-et150-service-kit","title":"Hailea ET150 \/ ET200 Service Kit","description":"\u003cp\u003e\u003cspan\u003eThe service kit for the ET150 \/ ET200 includes 2 diaphragms, 1 filter and 8 valves. At GroAqua we recommend your ET pump be serviced every 18 months.\u003c\/span\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":54387475612033,"sku":"CA-ET200-SERVICE","price":63.43,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/charles-austen-et150-et200-service-kit-ca-et200-service-8951617.png?v=1757078185"},{"product_id":"charles-austen-et250-service-kit","title":"Hailea ET250 \/ ET300 Service Kit","description":"\u003cp\u003e\u003cspan\u003eThe service kit for the ET 250\/ ET300  includes 4 diaphragms, 1 filter and 16 valves. At GroAqua we recommend your ET pump be serviced every 18 months.\u003c\/span\u003e\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":54387477545345,"sku":"CA-ET250-SERVICE","price":126.85,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/charles-austen-et250-et300-service-kit-ca-et250-service-7747249.png?v=1757078186"},{"product_id":"charles-austen-cp60-air-pump-with-battery-back-up","title":"Hailea CP60 Air Pump with Battery Back Up","description":"\u003cp data-start=\"559\" data-end=\"1006\"\u003eThe Charles Austen CP60 Air Pump Battery Back Up is a powerful and versatile aeration solution designed to provide peace of mind for pond keepers, aquaculture professionals, and wastewater treatment operators. With its robust design, long-lasting battery, and variable flow control, the CP60 ensures that oxygenation continues even during a power outage – a critical feature for protecting valuable fish stocks and maintaining water quality.\u003c\/p\u003e\n\u003cp data-start=\"1008\" data-end=\"1492\"\u003eUnlike standard air pumps, the CP60 features a built-in 12V rechargeable battery that provides up to 8 hours of continuous operation. In the event of a mains power failure, the pump automatically switches from AC to DC power, keeping aeration systems running without interruption. This makes it an essential piece of equipment for koi ponds, fish transportation, aquariums, and sensitive aquatic systems where even short-term oxygen loss could have devastating consequences.\u003c\/p\u003e\n\u003cp data-start=\"1494\" data-end=\"1919\"\u003eAnother standout feature of the CP60 is its variable flow dial, which allows you to control the airflow rate with precision. Whether you’re oxygenating a transport vat, a koi pond, or a wastewater treatment system, you can easily adjust the flow to suit the application. This level of control not only improves efficiency but also reduces unnecessary stress on fish by tailoring oxygen delivery to their specific needs.\u003c\/p\u003e\n\u003cp data-start=\"1921\" data-end=\"2243\"\u003eThe CP60 is compact, portable, and user-friendly. An integrated retractable handle makes it easy to transport and reposition, while its oil-free design ensures clean, contamination-free air. A built-in LED indicator provides clear status updates, letting you know when the pump is running or requires recharging.\u003c\/p\u003e\n\u003cp data-start=\"2245\" data-end=\"2635\"\u003eWith a maximum flow rate of 60 litres per minute at 0.3 bar, the CP60 delivers high-pressure performance suitable for a wide variety of applications. It is exceptionally quiet at just 35dB, making it unobtrusive in both domestic and commercial environments. The unit is also low-maintenance, supported by competitively priced service kits and backed by a two-year UK warranty.\u003c\/p\u003e\n\u003ch3 data-start=\"2637\" data-end=\"2668\"\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul data-start=\"2670\" data-end=\"3367\"\u003e\n\u003cli data-start=\"2670\" data-end=\"2766\"\u003e\n\u003cp data-start=\"2672\" data-end=\"2766\"\u003eBackup Battery for Power Cuts – Automatic switch to DC power with up to 8 hours runtime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2767\" data-end=\"2864\"\u003e\n\u003cp data-start=\"2769\" data-end=\"2864\"\u003eVariable Flow Control – Adjust airflow with a simple dial to suit different environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2865\" data-end=\"2944\"\u003e\n\u003cp data-start=\"2867\" data-end=\"2944\"\u003ePortable Design – Retractable handle for easy movement and positioning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2945\" data-end=\"3014\"\u003e\n\u003cp data-start=\"2947\" data-end=\"3014\"\u003eMaintenance-Free Battery – Built-in rechargeable 12V battery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3015\" data-end=\"3103\"\u003e\n\u003cp data-start=\"3017\" data-end=\"3103\"\u003eQuiet Operation – Runs at just 35dB, making it one of the quietest in its class.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3104\" data-end=\"3176\"\u003e\n\u003cp data-start=\"3106\" data-end=\"3176\"\u003eOil-Free Air Supply – Provides clean, contamination-free oxygen.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3177\" data-end=\"3292\"\u003e\n\u003cp data-start=\"3179\" data-end=\"3292\"\u003eDurable Construction – Designed for koi ponds, aquaculture, wastewater treatment, and medical applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3293\" data-end=\"3367\"\u003e\n\u003cp data-start=\"3295\" data-end=\"3367\"\u003eLED Indicator – Clear operational and charging status at a glance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3369\" data-end=\"3714\"\u003eThe Charles Austen CP60 Air Pump Battery Back Up is not just another pond air pump – it’s a safeguard for your fish, your water systems, and your peace of mind. Whether you’re managing a koi pond, transporting valuable fish, or operating critical wastewater systems, this pump ensures that oxygen levels never fall when you need them most.\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":55305960489345,"sku":"CA-CP60","price":116.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/charles-austen-cp60-air-pump-with-battery-back-up-3953916.png?v=1769813289"},{"product_id":"charles-austen-cp120-air-pump-with-battery-back-up","title":"Hailea CP120 Air Pump with Battery Back Up","description":"\u003cp data-start=\"398\" data-end=\"889\"\u003eThe Charles Austen CP120 Air Pump Battery Back Up is a powerful, dual-outlet aeration system designed to provide reliable oxygenation for koi ponds, aquaculture, wastewater treatment, and fish transportation. Unlike standard air pumps, the CP120 comes equipped with a built-in rechargeable 12V battery that keeps your system running for up to 8 hours during a power cut, ensuring fish stocks and aquatic systems remain safe and oxygenated when mains electricity is unavailable.\u003c\/p\u003e\n\u003cp data-start=\"891\" data-end=\"1394\"\u003eThis high-output pump delivers 120 litres per minute across two 60 L\/min outlets, offering greater flexibility for larger or multi-chamber systems. Its automatic power switching feature allows the pump to run from AC power during normal operation and seamlessly switch to DC battery power in the event of an outage. For pond keepers and aquaculture professionals, this built-in protection provides essential peace of mind during storms, electrical failures, or when transporting valuable fish.\u003c\/p\u003e\n\u003cp data-start=\"1396\" data-end=\"1807\"\u003eOne of the CP120’s most practical features is its variable flow control dial, which enables precise adjustment of airflow to match the environment. Whether you’re oxygenating a koi pond, boosting bacteria in a wastewater system, or running a transport vat, you can fine-tune the output to suit your needs. This not only improves efficiency but also helps prevent over-aeration and reduces stress for fish.\u003c\/p\u003e\n\u003cp data-start=\"1809\" data-end=\"2111\"\u003eThe unit is built with portability in mind, featuring an integrated retractable handle for easy movement and placement. Its oil-free design ensures contamination-free oxygen supply, while a LED indicator provides clear status updates, showing when the pump is running or needs recharging.\u003c\/p\u003e\n\u003cp data-start=\"2113\" data-end=\"2391\"\u003eAt just 35dB, the CP120 is exceptionally quiet, making it ideal for both domestic ponds and professional environments where low noise levels are important. It is also highly durable, supported by competitively priced service kits and covered by a two-year UK warranty.\u003c\/p\u003e\n\u003ch3 data-start=\"2393\" data-end=\"2424\"\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul data-start=\"2426\" data-end=\"3254\"\u003e\n\u003cli data-start=\"2426\" data-end=\"2556\"\u003e\n\u003cp data-start=\"2428\" data-end=\"2556\"\u003eBackup Battery for Power Cuts – Built-in 12V rechargeable battery provides up to 8 hours of aeration during mains failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2557\" data-end=\"2660\"\u003e\n\u003cp data-start=\"2559\" data-end=\"2660\"\u003eVariable Flow Dial – Adjust airflow precisely to match your pond, tank, or system requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2661\" data-end=\"2769\"\u003e\n\u003cp data-start=\"2663\" data-end=\"2769\"\u003eHigh Output Performance – Dual 60 L\/min outlets delivering a total of 120 L\/min at 0.3 bar pressure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2770\" data-end=\"2864\"\u003e\n\u003cp data-start=\"2772\" data-end=\"2864\"\u003ePortable Design – Integrated retractable handle makes it easy to carry and reposition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2865\" data-end=\"2958\"\u003e\n\u003cp data-start=\"2867\" data-end=\"2958\"\u003eQuiet \u0026amp; Efficient – Low-noise operation at just 35dB with only 28W power consumption.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2959\" data-end=\"3067\"\u003e\n\u003cp data-start=\"2961\" data-end=\"3067\"\u003eOil-Free Oxygen Supply – Ensures clean and contamination-free airflow for sensitive aquatic systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3068\" data-end=\"3157\"\u003e\n\u003cp data-start=\"3070\" data-end=\"3157\"\u003eLED Status Indicator – Clearly displays pump operation and battery charge levels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3158\" data-end=\"3254\"\u003e\n\u003cp data-start=\"3160\" data-end=\"3254\"\u003eLow Maintenance – Easy servicing with affordable kits and backed by a two-year warranty.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3256\" data-end=\"3571\"\u003eThe Charles Austen CP120 Air Pump Battery Back Up is the ideal choice for pond keepers who demand high-capacity aeration with the security of emergency backup power. Whether used for koi ponds, fish transport, or wastewater treatment, this pump ensures uninterrupted oxygenation and long-term reliability.\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":55305962193281,"sku":"CA-CP120","price":132.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/charles-austen-cp120-air-pump-with-battery-back-up-2017160.png?v=1769813290"},{"product_id":"hailea-eti150-pro-air-pump","title":"Hailea ETi150 Pro Air Pump","description":"\u003ch3\u003eSmart.  Ultra efficient, Ultra quier Air Pump\u003c\/h3\u003e\n\u003cp\u003eCharles Austen ETi150 Pro Air Pump is a reliable solution for keeping your pond healthy and thriving. This powerful pump is designed to oxygenate water efficiently, promoting the well-being of your aquatic plants and fish. With its durable construction and long-lasting performance, this air pump is a must-have for any pond owner looking to maintain a pristine ecosystem.\u003c\/p\u003e\n\u003ch3\u003eEfficient Septic Tank Aerator\u003c\/h3\u003e\n\u003cp\u003eNot just for ponds, the Charles Austen ETi150 Pro Air Pump is also ideal for use in septic tanks. By providing a steady flow of oxygen, this air pump helps break down waste and prevent clogs, ensuring that your septic system functions smoothly and efficiently. Say goodbye to costly repairs and unpleasant odors with this reliable and efficient aerator.\u003c\/p\u003e\n\u003ch3\u003eEasy to Install and Maintain\u003c\/h3\u003e\n\u003cp\u003eInstalling and maintaining the Charles Austen ETi150 Pro Air Pump is a breeze. Its compact design and simple instructions make setup a quick and easy process, while its low-maintenance operation ensures hassle-free use for years to come. Keep your pond or septic tank in top condition with this versatile and user-friendly air pump.\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":56179564282241,"sku":"CA-ETi150","price":258.41,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/hailea-eti200-pro-air-pump-ca-eti200-6365971.png?v=1787808557"},{"product_id":"hailea-eti200-pro-air-pump","title":"Hailea ETi200 Pro Air Pump","description":"\u003ch3\u003eSmart.  Ultra efficient, Ultra quier Air Pump\u003c\/h3\u003e\n\u003cp\u003eCharles Austen ETi200 Pro Air Pump is a reliable solution for keeping your pond healthy and thriving. This powerful pump is designed to oxygenate water efficiently, promoting the well-being of your aquatic plants and fish. With its durable construction and long-lasting performance, this air pump is a must-have for any pond owner looking to maintain a pristine ecosystem.\u003c\/p\u003e\n\u003ch3\u003eEfficient Septic Tank Aerator\u003c\/h3\u003e\n\u003cp\u003eNot just for ponds, the Charles Austen ETi200 Pro Air Pump is also ideal for use in septic tanks. By providing a steady flow of oxygen, this air pump helps break down waste and prevent clogs, ensuring that your septic system functions smoothly and efficiently. Say goodbye to costly repairs and unpleasant odors with this reliable and efficient aerator.\u003c\/p\u003e\n\u003ch3\u003eEasy to Install and Maintain\u003c\/h3\u003e\n\u003cp\u003eInstalling and maintaining the Charles Austen ETi200 Pro Air Pump is a breeze. Its compact design and simple instructions make setup a quick and easy process, while its low-maintenance operation ensures hassle-free use for years to come. Keep your pond or septic tank in top condition with this versatile and user-friendly air pump.\u003c\/p\u003e","brand":"enviro","offers":[{"title":"Default Title","offer_id":56179569852801,"sku":"CA-ETi200","price":294.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/hailea-eti200-pro-air-pump-ca-eti200-7754302.png?v=1787808557"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/collections\/air-pumps-for-ponds-8235965.png?v=1784316676","url":"https:\/\/groaqua.store\/en-eu\/collections\/air-pumps.oembed","provider":"GroAqua","version":"1.0","type":"link"}