Air Pumps

Improve Pond Health with Aeration

Aeration is vital for maintaining a healthy pond ecosystem. Air pumps help introduce oxygen into the water, which is essential for fish and other aquatic life. By increasing oxygen levels, air pumps prevent the build-up of harmful gases and promote beneficial bacteria growth, leading to clearer water and a balanced ecosystem.

Choose the Right Air Pump

When selecting an air pump for your pond, consider factors such as pond size, depth, and the number of fish. Different air pumps have varying capacities and output levels, so it's important to choose one that meets the specific needs of your pond. Additionally, investing in a reliable and energy-efficient air pump will ensure long-term success in maintaining optimal water quality.

Maximise Pond Performance

Regular maintenance of your air pump is crucial to maximize its performance and longevity. Check air filters and tubing regularly for blockages or damage, and clean or replace them as needed. Proper placement of air stones or diffusers will also enhance the distribution of oxygen throughout the pond. With the right air pump and maintenance routine, you can enjoy a vibrant and thriving pond environment for years to come.


  • Last stock! Charles Austen Enviro ET30 Air Pump Hailea

    Charles Austen Charles Austen Enviro ET30

    Efficient Air Pump Introducing the Charles Austen Enviro ET30 air pump, a powerful and efficient solution for aerating ponds and septic tanks. This high-quality pump is designed to provide consistent airflow, promoting a healthy environment for aquatic life and maintaining optimal functioning of septic systems. Designed for Ponds The Charles Austen Enviro ET30 is specifically engineered to meet the needs of pond owners, delivering reliable aeration to support fish and plant life. With its durable construction and quiet operation, this air pump is the perfect choice for maintaining water quality and creating a thriving ecosystem in your pond. Perfect for Septic Tanks Not only is the Charles Austen Enviro ET30 ideal for ponds, but it is also an excellent option for aerating septic tanks. By promoting the breakdown of organic matter and preventing the buildup of harmful gases, this air pump helps to prolong the lifespan of your septic system and reduce the need for costly maintenance. Invest in the Charles Austen Enviro ET30 for reliable performance and peace of mind.

    €73,95

  • Last stock! Charles Austen Enviro ET40 Air Pump Hailea

    Charles Austen Charles Austen Enviro ET40 Air Pump

    Green drive technology – energy efficient motors low power consumption. Specially formulated diaphragm material for extended life. Due to no wearing parts no reduction in performance. Robust and compact construction – weatherproofEasy to service with competitively priced spares kit. Suited to intermittent or continuous duty applications. Whisper quiet operation as low as 35db ET40 Pump: Product Type: Oil Free Air Maximum Flow: 40 Litres Per Minute @ 0.12 bar Power Consumption: 30 Watts Weight: 4.3 kgs Dimensions: 218mm Long x 156mm Wide x 182mm High Connector Size: 14mm Accessories Included: Screw in brass connector,  L shaped elbow & 2 hose clips Supply Voltage: 220v - 240v 50Hz

    €86,95

  • Charles Austen Enviro ET60 Air Pump Hailea

    Charles Austen Charles Austen Enviro ET60 Air Pump

    Air Pump for Ponds Enhance the oxygen levels in your pond with the Charles Austen Enviro ET60 air pump. This powerful pump is designed to aerate water, keeping your pond clean and healthy for fish and plants to thrive. The durable construction ensures longevity, making it a reliable choice for pond owners. For Septic Tanks The Charles Austen Enviro ET60 is also ideal for aerating septic tanks, promoting the growth of beneficial bacteria that break down waste efficiently. By introducing oxygen into the tank, this air pump helps prevent odors and improves overall system performance. Trust this pump to keep your septic system running smoothly. Reliable Performance With its energy-efficient design, the Charles Austen Enviro ET60 delivers consistent and reliable performance. The adjustable airflow allows you to customize aeration levels based on your specific needs. Whether for ponds or septic tanks, this air pump provides a cost-effective solution for maintaining a healthy environment.

    €100,95

  • Charles Austen ET80 Blower Air Pump Air Pump Hailea

    Charles Austen Charles Austen ET80 Blower Air Pump

    Green drive technology - energy efficient motors low power consumption. Specially formulated diaphragm material for extended life. Due to no wearing parts no reduction in performance. Robust and compact construction - weatherproof.Easy to service with competitively priced spares kit. Suited to intermittent or continuous duty applications. Whisper quiet operation as low as 35dB.  ET80 Pump: Product Type: Oil Free Air Maximum Flow: 80 Litres Per Minute @ 0.10 bar Power Consumption: 85 Watts Weight: 7.0 kgs Dimensions: 210mm Long x 185mm Wide x 171mm High Connector Size: 18mm Accessories Included: Screw in brass connector,  L shaped elbow & 2 hose clips Supply Voltage: 220v - 240v 50Hz

    €121,95

  • Charles Austen ET100 Pond Pump Air Pump Hailea

    Charles Austen Charles Austen ET100 Pond Pump

    Green drive technology - energy efficient motors low power consumption. Specially formulated diaphragm material for extended life. Due to no wearing parts no reduction in performance. Robust and compact construction - weatherproof.Easy to service with competitively priced spares kit. Suited to intermittent or continuous duty applications. Whisper quiet operation as low as 35dBET100 Pump: Product Type: Oil Free Air Maximum Flow: 100 Litres Per Minute @ 0.10 bar Power Consumption: 105 Watts Weight: 8.5 kgs Dimensions: 238mm Long x 196mm Wide x 177mm High Connector Size: 18mm Accessories Included: Screw in brass connector,  L shaped elbow & 2 hose clips Supply Voltage: 220v - 240v 50Hz

    €145,95

  • Charles Austen Enviro ET120 Blower Air Pump Hailea

    Charles Austen Charles Austen Enviro ET120 Blower

    Green drive technology - energy efficient motors low power consumption. Specially formulated diaphragm material for extended life.  Due to no wearing parts no reduction in performance. Robust and compact construction - weatherproof.Easy to service with competitively priced spares kit. Suited to intermittent or continuous duty applications. Whisper quiet operation as low as 35dBET120 Pump: Product Type: Oil Free Air Maximum Flow: 120 Litres Per Minute @ 0.20 bar Power Consumption: 125 Watts Weight: 9.5 kgs Dimensions: 265mm Long x 215mm Wide x 198mm High Connector Size: 18mm Accessories Included: Screw in brass connector,  L shaped elbow & 2 hose clips Supply Voltage: 220v - 240v 50Hz

    €157,95

  • Charles Austen Enviro ET300 air pump Air Pump Hailea

    Charles Austen Charles Austen Enviro ET300 air pump

    The Enviro ET300 air pump helps to increase the amount of oxygen in the water. Providing a clean, oil-free air source it is exceptionally quiet in operation, as low as 35dB even when running continuously. The ET300 is easy to service with a competitively priced service kit and is also supported by our two year warranty. With its weatherproof, robust construction it makes an ideal wastewater pump.  Max Flow: 300 Litres per minute Max Pressure: 0.20 bar Weight: 18.0 kilograms Dimensions (L x W x H): 348.5 x 230.5 x 219mm Connector Size: 26mm Power: 275W

    €629,95

  • Charles Austen Enviro ETA Pro Series Air Pumps Air Pump Hailea ET40A

    Charles Austen Charles Austen Enviro ETA Pro Series Air Pumps

    The 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. Robust and compact construction - weatherproof Green drive technology offers energy efficient motors meaning low power consumption Supplied with a rubber elbow for easy fitting  Model Flow Connector Power Dimensions ET40A 40lpm @ 0.12bar 18mm 30w 220 x 155 x 140mm ET60A 60lpm @ 0.12bar 18mm 55w 253 x 165 x 183mm ET80A 80lpm @ 0.12bar 18mm 85w 210 x 185 x 201mm ET100A 100lpm @ 0.12bar 18mm 105w 238 x 196 x 207mm ET120A 120lpm @ 0.12bar 18mm 125w 315 x 215x 228mm ET150A 150lpm @ 0.12bar 18mm 125w 346 x 200 x 222mm ET200A 200lpm @ 0.12bar 18mm 210w 346 x 200 x 222mm ET250A 250lpm @ 0.12bar 26mm 221w 348 x 231 x 219mm ET300 300lpm @ 0.12bar 26mm 221w 348 x 231 x 219mm Technical Data Sheet

    €128,95 - €706,95

  • Charles Austen ET400 / ET500 Service Kit Air Pump Hailea

    Charles Austen Charles Austen ET400 / ET500 Service Kit

    The 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.

    €183,95

  • Charles Austen ET150 Pro Air Pump Air Pump Hailea

    Charles Austen Charles Austen ET150 Pro Air Pump

    High-performance Pond Pump Charles Austen ET150 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. Efficient Septic Tank Aerator Not just for ponds, the Charles Austen ET150 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. Easy to Install and Maintain Installing and maintaining the Charles Austen ET150 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.

    €371,95

  • Charles Austen ET100 Service Kit Air Pump Hailea

    Charles Austen Charles Austen ET100 Service Kit

    The 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.

    €34,95

  • Charles Austen ET100 Service Kit Air Pump Hailea

    Charles Austen Charles Austen ET120 Service Kit

    The 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.

    €34,95

  • Charles Austen ET100 Service Kit Air Pump Hailea

    Charles Austen Charles Austen ET40 Service Kit

    The 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.

    €32,95

  • Charles Austen ET100 Service Kit Air Pump Hailea

    Charles Austen Charles Austen ET30 Service Kit

    The 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.

    €32,95

  • Charles Austen ET100 Service Kit Air Pump Hailea

    Charles Austen Charles Austen ET60 Service Kit

    The 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.

    €34,95

  • Charles Austen ET100 Service Kit Air Pump Hailea

    Charles Austen Charles Austen ET80 & ETP60 Service Kit

    The 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.

    €34,95

  • Charles Austen ET150 / ET200 Service Kit Air Pump Hailea

    Charles Austen Charles Austen ET150 / ET200 Service Kit

    The 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.

    €67,95

  • Charles Austen ET250 / ET300 Service Kit Air Pump Hailea

    Charles Austen Charles Austen ET250 / ET300 Service Kit

    The 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.

    €135,95

  • Charles Austen CP60 Air Pump with Battery Back Up - GroAqua

    Charles Austen Charles Austen CP60 Air Pump with Battery Back Up

    The 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. Unlike 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. Another 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. The 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. With 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. Key Features and Benefits Backup Battery for Power Cuts – Automatic switch to DC power with up to 8 hours runtime. Variable Flow Control – Adjust airflow with a simple dial to suit different environments. Portable Design – Retractable handle for easy movement and positioning. Maintenance-Free Battery – Built-in rechargeable 12V battery. Quiet Operation – Runs at just 35dB, making it one of the quietest in its class. Oil-Free Air Supply – Provides clean, contamination-free oxygen. Durable Construction – Designed for koi ponds, aquaculture, wastewater treatment, and medical applications. LED Indicator – Clear operational and charging status at a glance. The 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.

    €140,95

  • Charles Austen CP120 Air Pump with Battery Back Up - GroAqua

    Charles Austen Charles Austen CP120 Air Pump with Battery Back Up

    The 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. This 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. One 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. The 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. At 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. Key Features and Benefits Backup Battery for Power Cuts – Built-in 12V rechargeable battery provides up to 8 hours of aeration during mains failure. Variable Flow Dial – Adjust airflow precisely to match your pond, tank, or system requirements. High Output Performance – Dual 60 L/min outlets delivering a total of 120 L/min at 0.3 bar pressure. Portable Design – Integrated retractable handle makes it easy to carry and reposition. Quiet & Efficient – Low-noise operation at just 35dB with only 28W power consumption. Oil-Free Oxygen Supply – Ensures clean and contamination-free airflow for sensitive aquatic systems. LED Status Indicator – Clearly displays pump operation and battery charge levels. Low Maintenance – Easy servicing with affordable kits and backed by a two-year warranty. The 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.

    €163,95

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