envir-o® ET DOUBLE SERIES
The ET Double 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. The double series offer high flow from a small footprint, and offer a useful alternative to expensive and noisy rotary vane compressors.
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250.0 l/min @ (0.2 bar)
221W
ET 250
40 dB(A)
26mm Connector Size
300.0 l/min @ (0.2 bar)
275W
ET 300
26mm Connector Size
40 dB(A)
400.0 l/min @ (0.2 bar)
350W
ET 400
45 dB(A)
27mm Connector Size
500.0 l/min @ (0.2 bar)
460W
ET 500
27mm Connector Size
45 dB(A)
Key Features:
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Low running costs with exceptional reliability – long service intervals for reduced maintenance.
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High-capacity compressor pumps – the largest in the ET range, delivering powerful air flow and pressure ideal for sewage breakdown.
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Perfect for large-scale systems – suited for sewage treatment plants and extensive pond aeration setups.
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Weatherproof design – suitable for both indoor and outdoor installations.
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Extended lifespan – compatible with our service kits to ensure long-term performance.
Extended Lifespan with Hassle-Free Servicing
We recommend that enviro pumps are serviced at least every 18 months, service kits for each pump can be purchased from us. Sign up to our service reminder and we'll remind you when it is due!
Warranty
All Pro Series Air Pumps are covered by a two year warranty on the pump motor. To validate this warranty, the aerator must be serviced on a yearly basis. We recommend that the consumables including the diaphragms and filter are changed at this point.
The wear and tear parts are outside the two year warranty but are covered by a year’s warranty providing they have been used correctly and not subjected to back pressure or water damage.
This warranty is only valid for pumps that are used as recommended.