{"title":"Oxygen Diffusers \u0026 Aquaculture Aeration","description":"\u003cp\u003eMaintain effective oxygen levels in aquaculture systems with high-performance oxygen diffusers and aeration equipment from GroAqua. Our range includes fine-bubble air diffusers and micro-bubble oxygen diffusers designed for fish farms, hatcheries, holding tanks, grow-out systems and other demanding water applications.\u003c\/p\u003e\n\u003cp\u003eEffective aeration and oxygen transfer are essential for maintaining suitable water conditions in aquaculture. Selecting the right diffuser can help improve gas transfer, support water circulation and provide a reliable oxygen supply for fish and other aquatic species.\u003c\/p\u003e\n\u003ch3\u003eFine-Bubble Air Diffusers\u003c\/h3\u003e\n\u003cp\u003eExplore Dryden Aqua fine-bubble air diffusers, designed for efficient aeration in tanks and ponds. Their semi-flexible, self-weighted construction allows them to sit on the bottom of the tank without requiring floor anchoring. Available in different lengths, they offer flexibility when configuring aeration systems for aquaculture and water treatment applications.\u003c\/p\u003e\n\u003cp\u003eThe Dryden Aqua diffuser range is designed for air handling capacities of approximately 1–10 m³\/h, with oxygen transfer performance stated by the manufacturer of up to 5 kg O₂\/kWh under specified conditions. The robust construction, built-in non-return valve and resistance to calcification make these diffusers suitable for demanding installations.\u003c\/p\u003e\n\u003ch3\u003eMicro-Bubble Oxygen Diffusers\u003c\/h3\u003e\n\u003cp\u003eFor applications requiring fine oxygen bubbles and efficient gas absorption, explore Pentair AES Point Four micro-bubble diffusers. These aquaculture-duty diffusers use specialised ceramic plates to produce very fine bubbles, approximately 100–500 microns in size.\u003c\/p\u003e\n\u003cp\u003eThe fine-bubble design promotes gas absorption and is suitable for pure oxygen and carbon dioxide applications, high-density fish holding, transport systems, grow-out tanks and emergency aeration. Selected Point Four models are available in different sizes and configurations to suit individual system requirements.\u003c\/p\u003e\n\u003ch3\u003eAquaculture Aeration Applications\u003c\/h3\u003e\n\u003cp\u003eOur oxygen diffusers and aeration products are suitable for a range of applications, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFish farming and commercial aquaculture.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecirculating aquaculture systems (RAS).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFish hatcheries and nursery tanks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHolding, quarantine and grow-out tanks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLive fish transport and high-density holding.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePond and tank aeration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOxygen and carbon dioxide gas transfer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWater treatment and biological treatment processes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoose the Right Oxygen Diffuser\u003c\/h3\u003e\n\u003cp\u003eThe correct diffuser depends on the application, tank dimensions, water depth, required oxygen transfer, gas supply and operating pressure. Fine-bubble air diffusers and micro-bubble oxygen diffusers serve different purposes, so it is important to match the equipment to the system's operating conditions.\u003c\/p\u003e\n\u003cp\u003eAt GroAqua, we supply specialist aquaculture equipment from established manufacturers including Dryden Aqua and Pentair AES. Browse our oxygen diffusers and aeration products or contact our team for help selecting suitable equipment for your application.\u003c\/p\u003e","products":[{"product_id":"dryden-air-diffusers","title":"Dryden Air Diffuser Hose 3 Metre","description":"\u003cp data-mce-fragment=\"1\"\u003eThe Dryden Aqua Air Diffuser is a semi-flexible, high-efficiency fine bubble air diffuser available in 9 different lengths, depending on the air through-put required . It provides oxygen transfer rates of up to 5kg\/kw, 10m\u003csup data-mce-fragment=\"1\"\u003e3\u003c\/sup\u003e\/h of air and 1 kg of O\u003csub data-mce-fragment=\"1\"\u003e2\u003c\/sub\u003e\/h. Its semi-flexible construction with its own internal ballast will stay on the bottom of tank or pond without the need to be anchored to the floor.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Dryden Aqua Air Diffuser combines excellent performance with cost effectiveness for aeration, oxidation and biological treatment.\u003c\/p\u003e\n\u003ch2 class=\"bordertitle\" data-mce-fragment=\"1\"\u003eDryden Aqua Air Diffuser Key Features\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eSemi-flexible, tubular construction\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eSelf weighted\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eAvailable in 9 lengths from 0.3 – 3m.\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eAir handling capacity from 1 – 10m\u003cspan class=\"s2\" data-mce-fragment=\"1\"\u003e3\u003c\/span\u003e\/hr\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eLess than 0.2 Bar (3 psi) pressure differential\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eOxygen transfer efficiency up to 5 kg\/kwhr\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eResistant to calcification\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eEasy to clean and maintain\u003c\/li\u003e\n\u003cli class=\"p4\" data-mce-fragment=\"1\"\u003eRobust and long-lasting (typical lifespan is 5 – 10 yrs)\u003c\/li\u003e\n\u003cli class=\"p1\" data-mce-fragment=\"1\"\u003eBuilt in non-return valve\u003c\/li\u003e\n\u003cli class=\"p1\" data-mce-fragment=\"1\"\u003eStainless steel and plastic construction\u003c\/li\u003e\n\u003cli class=\"p1\" data-mce-fragment=\"1\"\u003eCan be used with Air, N\u003cspan class=\"s1\" data-mce-fragment=\"1\"\u003e2\u003c\/span\u003e, CO\u003cspan class=\"s1\" data-mce-fragment=\"1\"\u003e2\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"bordertitle\" data-mce-fragment=\"1\"\u003eOxygen Transfer Performance\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSurface aerators waste a huge amount of kinetic energy throwing the water into the air, transfer coefficient is 1 kg to 2 kg of oxygen per kW. Membrane diffusers are more efficient at 2 kg to 3 kg of oxygen per kW. The Dryden Aqua diffuser at over 5 kg is therefore the most efficient fine bubble diffuser available and is ideal for retrofit applications as a simple drop in product for tanks and ponds in Aquaculture and Waste Water Treatment.\u003c\/p\u003e","brand":"Dryden","offers":[{"title":"Default Title","offer_id":47751883030842,"sku":"DA-70008-XL","price":173.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/dryden-air-diffusers-327168.jpg?v=1684513663"},{"product_id":"point-four™-plastic-micro-bubble-diffuser-pmbd75","title":"Point Four Plastic Micro Bubble Diffuser (PMBD75)","description":"\u003cp data-mce-fragment=\"1\"\u003ePoint Four Plastic Micro Bubble Diffusers (PMBD) are one of the most efficient diffusers available, allowing you to increase yield while controlling the cost of expensive gases. Made from premium materials and subject to rigorous testing, PMBDs provide the kind of performance and reliability our reputation is built on.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003ePoint Four diffusers use a specially developed, ultra fine pore ceramic plate that produces a cloud of extremely fine bubbles of approximately 100–500 microns; far superior to airstones, porous hose or membrane type designs. The flat plate design ensures uniform bubbles across the entire surface and minimizes bubble coalescence to achieve an absorption rate in excess of 80%, depending on depth and flowrate. Bubbling pressure is 25 to 35 psi (1.7 to 2.4 bar).\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e• Robust construction—ceramic plates set in an injection moulded plastic base with solid brass connection fittings.\u003cbr data-mce-fragment=\"1\"\u003e• Flexible, modular design lets you easily add or subtract diffusers as your needs change.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eApplications for micro-bubble diffusers include pure gas applications (pure oxygen, carbon dioxide), high-density hauling, holding\/grow out tanks and emergency aeration.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNote: Diffusers are also known as airstones.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Pentair AES","offers":[{"title":"Default Title","offer_id":44619510677818,"sku":"PE-1DMBD075","price":100.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/products\/point-four-plastic-micro-bubble-diffuser-pmbd75-pe-1dmbd075-5943706.jpg?v=1757079113"},{"product_id":"point-four-mbd-100-micro-bubble-diffuser","title":"Point Four MBD 100 Micro Bubble Diffuser","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThese aquaculture-duty diffusers are among the most efficient diffusers available, allowing you to increase yield while controlling the cost of expensive gases. Made from premium materials and subject to rigorous testing, Micro Bubble Diffusers provide the kind of performance and reliability our reputation is built on. Size below depicts base dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eThe original ... since 1988\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese aquaculture-duty diffusers are among the most efficient diffusers available, allowing you to increase yield while controlling the cost of expensive gases. Made from premium materials and subject to rigorous testing, Micro Bubble Diffusers provide the kind of performance and reliability our reputation is built on.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePoint Four diffusers use a specially developed, ultra fine pore ceramic plate that produces a cloud of extremely fine bubbles of approximately 100–500 microns; far superior to airstones, porous hose or membrane type designs. The flat plate design ensures uniform bubbles across the entire surface and minimizes bubble coalescence to achieve an absorption rate in excess of 80%, depending on depth and flowrate. Bubbling Pressure is 25 to 35 psi. (1.7 to 2.4 bar).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eApplications for micro-bubble diffusers include pure gas applications (pure oxygen, carbon dioxide), high-density hauling, holding\/growout tanks and emergency aeration.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Zgpvsevf8eU?si=KQtgLqOEj-G75yX4\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Pentair AES","offers":[{"title":"Default Title","offer_id":48095210864954,"sku":"PE-1DMBDC100","price":129.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/point-four-mbd-100-micro-bubble-diffuser-pe-1dmbdc100-2224252.png?v=1757078480"},{"product_id":"point-four-mbd-300-micro-bubble-diffuser","title":"Point Four MBD 300 Micro Bubble Diffuser","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThese aquaculture-duty diffusers are among the most efficient diffusers available, allowing you to increase yield while controlling the cost of expensive gases. Made from premium materials and subject to rigorous testing, Micro Bubble Diffusers provide the kind of performance and reliability our reputation is built on. Size below depicts base dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eThe original ... since 1988\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThese aquaculture-duty diffusers are among the most efficient diffusers available, allowing you to increase yield while controlling the cost of expensive gases. Made from premium materials and subject to rigorous testing, Micro Bubble Diffusers provide the kind of performance and reliability our reputation is built on.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePoint Four diffusers use a specially developed, ultra fine pore ceramic plate that produces a cloud of extremely fine bubbles of approximately 100–500 microns; far superior to airstones, porous hose or membrane type designs. The flat plate design ensures uniform bubbles across the entire surface and minimizes bubble coalescence to achieve an absorption rate in excess of 80%, depending on depth and flowrate. Bubbling Pressure is 25 to 35 psi. (1.7 to 2.4 bar).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eApplications for micro-bubble diffusers include pure gas applications (pure oxygen, carbon dioxide), high-density hauling, holding\/growout tanks and emergency aeration.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Zgpvsevf8eU?si=KQtgLqOEj-G75yX4\" height=\"315\" width=\"560\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.youtube.com\/embed\/Zgpvsevf8eU?si=KQtgLqOEj-G75yX4\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pentair AES","offers":[{"title":"Default Title","offer_id":48095285182778,"sku":"PE-1DMBDC300","price":268.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/point-four-mbd-300-micro-bubble-diffuser-pe-1dmbdc300-3615920.png?v=1757078488"},{"product_id":"point-four-mbd-600-micro-bubble-diffuser","title":"Point Four MBD 600 Micro Bubble Diffuser","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThese aquaculture-duty diffusers are among the most efficient diffusers available, allowing you to increase yield while controlling the cost of expensive gases. Made from premium materials and subject to rigorous testing, Micro Bubble Diffusers provide the kind of performance and reliability our reputation is built on. Size below depicts base dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eThe original since 1988\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThese aquaculture-duty diffusers are among the most efficient diffusers available, allowing you to increase yield while controlling the cost of expensive gases. Made from premium materials and subject to rigorous testing, Micro Bubble Diffusers provide the kind of performance and reliability our reputation is built on.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePoint Four diffusers use a specially developed, ultra fine pore ceramic plate that produces a cloud of extremely fine bubbles of approximately 100–500 microns; far superior to airstones, porous hose or membrane type designs. The flat plate design ensures uniform bubbles across the entire surface and minimizes bubble coalescence to achieve an absorption rate in excess of 80%, depending on depth and flowrate. Bubbling Pressure is 25 to 35 psi. (1.7 to 2.4 bar).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eApplications for micro-bubble diffusers include pure gas applications (pure oxygen, carbon dioxide), high-density hauling, holding\/growout tanks and emergency aeration.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Zgpvsevf8eU?si=KQtgLqOEj-G75yX4\" height=\"315\" width=\"560\" data-mce-fragment=\"1\"\u003e\u003c\/iframe\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cul class=\"tabs-content\" data-mce-fragment=\"1\"\u003e\n\u003cli class=\"active\" data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pentair AES","offers":[{"title":"Default Title","offer_id":48095351537978,"sku":"PE-1DMBDC600","price":470.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/point-four-mbd-600-micro-bubble-diffuser-pe-1dmbdc600-2048046.png?v=1757078482"},{"product_id":"dryden-air-diffuser-0-33mtr","title":"Dryden Air Diffuser 0.33mtr","description":"\u003cp\u003eThe Dryden Aqua Air Diffuser is a semi-flexible, high-efficiency fine bubble air diffuser available in 9 different lengths, depending on the air through-put required . It provides oxygen transfer rates of up to 5kg\/kw, 10m\u003csup\u003e3\u003c\/sup\u003e\/h of air and 1 kg of O\u003csub\u003e2\u003c\/sub\u003e\/h. Its semi-flexible construction with its own internal ballast will stay on the bottom of tank or pond without the need to be anchored to the floor.\u003c\/p\u003e\n\u003cp\u003eThe Dryden Aqua Air Diffuser combines excellent performance with cost effectiveness for aeration, oxidation and biological treatment.\u003c\/p\u003e\n\u003ch2 class=\"bordertitle\"\u003eDryden Aqua Air Diffuser Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli class=\"p3\"\u003eSemi-flexible, tubular construction\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eSelf weighted\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eAvailable in 9 lengths from 0.3 – 3m.\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eAir handling capacity from 1 – 10m\u003cspan class=\"s2\"\u003e3\u003c\/span\u003e\/hr\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eLess than 0.2 Bar (3 psi) pressure differential\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eOxygen transfer efficiency up to 5 kg\/kwhr\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eResistant to calcification\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eEasy to clean and maintain\u003c\/li\u003e\n\u003cli class=\"p4\"\u003eRobust and long-lasting (typical lifespan is 5 – 10 yrs)\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eBuilt in non-return valve\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eStainless steel and plastic construction\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eCan be used with Air, N\u003cspan class=\"s1\"\u003e2\u003c\/span\u003e, CO\u003cspan class=\"s1\"\u003e2\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"bordertitle\"\u003eOxygen Transfer Performance\u003c\/h2\u003e\n\u003cp\u003eSurface aerators waste a huge amount of kinetic energy throwing the water into the air, transfer coefficient is 1 kg to 2 kg of oxygen per kW. Membrane diffusers are more efficient at 2 kg to 3 kg of oxygen per kW. The Dryden Aqua diffuser at over 5 kg is therefore the most efficient fine bubble diffuser available and is ideal for retrofit applications as a simple drop in product for tanks and ponds in Aquaculture and Waste Water Treatment.\u003c\/p\u003e","brand":"Dryden","offers":[{"title":"Default Title","offer_id":48095434801466,"sku":"DA-70000","price":115.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/dryden-air-diffuser-033mtr-da-70000-9644413.jpg?v=1757078481"},{"product_id":"dryden-air-diffuser-0-66mtr","title":"Dryden Air Diffuser 1mtr","description":"\u003cp\u003eThe Dryden Aqua Air Diffuser is a semi-flexible, high-efficiency fine bubble air diffuser available in 9 different lengths, depending on the air through-put required . It provides oxygen transfer rates of up to 5kg\/kw, 10m\u003csup\u003e3\u003c\/sup\u003e\/h of air and 1 kg of O\u003csub\u003e2\u003c\/sub\u003e\/h. Its semi-flexible construction with its own internal ballast will stay on the bottom of tank or pond without the need to be anchored to the floor.\u003c\/p\u003e\n\u003cp\u003eThe Dryden Aqua Air Diffuser combines excellent performance with cost effectiveness for aeration, oxidation and biological treatment.\u003c\/p\u003e\n\u003ch2 class=\"bordertitle\"\u003eDryden Aqua Air Diffuser Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli class=\"p3\"\u003eSemi-flexible, tubular construction\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eSelf weighted\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eAvailable in 9 lengths from 0.3 – 3m.\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eAir handling capacity from 1 – 10m\u003cspan class=\"s2\"\u003e3\u003c\/span\u003e\/hr\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eLess than 0.2 Bar (3 psi) pressure differential\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eOxygen transfer efficiency up to 5 kg\/kwhr\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eResistant to calcification\u003c\/li\u003e\n\u003cli class=\"p3\"\u003eEasy to clean and maintain\u003c\/li\u003e\n\u003cli class=\"p4\"\u003eRobust and long-lasting (typical lifespan is 5 – 10 yrs)\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eBuilt in non-return valve\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eStainless steel and plastic construction\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eCan be used with Air, N\u003cspan class=\"s1\"\u003e2\u003c\/span\u003e, CO\u003cspan class=\"s1\"\u003e2\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"bordertitle\"\u003eOxygen Transfer Performance\u003c\/h2\u003e\n\u003cp\u003eSurface aerators waste a huge amount of kinetic energy throwing the water into the air, transfer coefficient is 1 kg to 2 kg of oxygen per kW. Membrane diffusers are more efficient at 2 kg to 3 kg of oxygen per kW. The Dryden Aqua diffuser at over 5 kg is therefore the most efficient fine bubble diffuser available and is ideal for retrofit applications as a simple drop in product for tanks and ponds in Aquaculture and Waste Water Treatment.\u003c\/p\u003e","brand":"Dryden","offers":[{"title":"Default Title","offer_id":48095573016890,"sku":"DA-70002","price":130.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/dryden-air-diffuser-1mtr-da-70002-9140211.jpg?v=1757078479"},{"product_id":"dryden-air-diffuser-2mtr","title":"Dryden Air Diffuser 2mtr","description":"\u003cp data-mce-fragment=\"1\"\u003eThe Dryden Aqua Air Diffuser is a semi-flexible, high-efficiency fine bubble air diffuser available in 9 different lengths, depending on the air through-put required . It provides oxygen transfer rates of up to 5kg\/kw, 10m\u003csup data-mce-fragment=\"1\"\u003e3\u003c\/sup\u003e\/h of air and 1 kg of O\u003csub data-mce-fragment=\"1\"\u003e2\u003c\/sub\u003e\/h. Its semi-flexible construction with its own internal ballast will stay on the bottom of tank or pond without the need to be anchored to the floor.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Dryden Aqua Air Diffuser combines excellent performance with cost effectiveness for aeration, oxidation and biological treatment.\u003c\/p\u003e\n\u003ch2 class=\"bordertitle\" data-mce-fragment=\"1\"\u003eDryden Aqua Air Diffuser Key Features\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eSemi-flexible, tubular construction\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eSelf weighted\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eAvailable in 9 lengths from 0.3 – 3m.\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eAir handling capacity from 1 – 10m\u003cspan class=\"s2\" data-mce-fragment=\"1\"\u003e3\u003c\/span\u003e\/hr\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eLess than 0.2 Bar (3 psi) pressure differential\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eOxygen transfer efficiency up to 5 kg\/kwhr\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eResistant to calcification\u003c\/li\u003e\n\u003cli class=\"p3\" data-mce-fragment=\"1\"\u003eEasy to clean and maintain\u003c\/li\u003e\n\u003cli class=\"p4\" data-mce-fragment=\"1\"\u003eRobust and long-lasting (typical lifespan is 5 – 10 yrs)\u003c\/li\u003e\n\u003cli class=\"p1\" data-mce-fragment=\"1\"\u003eBuilt in non-return valve\u003c\/li\u003e\n\u003cli class=\"p1\" data-mce-fragment=\"1\"\u003eStainless steel and plastic construction\u003c\/li\u003e\n\u003cli class=\"p1\" data-mce-fragment=\"1\"\u003eCan be used with Air, N\u003cspan class=\"s1\" data-mce-fragment=\"1\"\u003e2\u003c\/span\u003e, CO\u003cspan class=\"s1\" data-mce-fragment=\"1\"\u003e2\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"bordertitle\" data-mce-fragment=\"1\"\u003eOxygen Transfer Performance\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSurface aerators waste a huge amount of kinetic energy throwing the water into the air, transfer coefficient is 1 kg to 2 kg of oxygen per kW. Membrane diffusers are more efficient at 2 kg to 3 kg of oxygen per kW. The Dryden Aqua diffuser at over 5 kg is therefore the most efficient fine bubble diffuser available and is ideal for retrofit applications as a simple drop in product for tanks and ponds in Aquaculture and Waste Water Treatment.\u003c\/p\u003e","brand":"Dryden","offers":[{"title":"Default Title","offer_id":48095734628666,"sku":"DA-70005","price":158.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/dryden-air-diffuser-2mtr-da-70005-4930361.jpg?v=1757078480"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/collections\/diffusers-accessories-1008399.png?v=1785334212","url":"https:\/\/groaqua.store\/en-eu\/collections\/diffusers-accessories.oembed","provider":"GroAqua","version":"1.0","type":"link"}