Air Pumps for Ponds - GroAqua

Air Pumps for Ponds

Pond Air Pumps are essential for keeping your water feature healthy, vibrant, and full of life. By delivering a steady flow of oxygen throughout the pond, these pumps support fish health, improve filtration efficiency, and help prevent harmful stagnation. Designed for year‑round performance, our air pumps offer quiet operation, energy‑efficient output, and dependable durabilityβ€”making them the perfect choice for maintaining crystal‑clear water and a thriving aquatic environment. Whether you’re caring for a small garden pond or a large koi setup, our air pumps provide the vital aeration your ecosystem needs to flourish.


  • Charles Austen ET100 Service Kit Air Pump Hailea

    Charles Austen Hailea 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.

    Β£25.87

  • Charles Austen ET100 Service Kit Air Pump Hailea

    Charles Austen Hailea ET80 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.

    Β£25.87

  • Charles Austen ET150 / ET200 Service Kit Air Pump Hailea

    Charles Austen Hailea 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.

    Β£50.40

  • Charles Austen ET250 / ET300 Service Kit Air Pump Hailea

    Charles Austen Hailea ET250 / ET300 Service Kit

    The service kit for the ET 250/ ET300Β  includes 4 diaphragms, 1 filter and 16 valves. At GroAqua we recommend your ET pump be serviced every 18 months.

    Β£100.80

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

    Charles Austen Hailea 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.

    Β£97.43

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

    Charles Austen Hailea 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.

    Β£113.39

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