Hailea ACO-9720 Deep Water Air Pump
Voltage: 220-240V 50Hz
Pressure: 0.025MPa min.
Air Flow: 30L/min
Noise: 40dB max.
Double Damper and noise absorbing system, ultra-silent.
Double flow bars, high air flow and air pressure.
Environmental friendly design, pure compressed air.
Complete waterproof. No leakeage!
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I had a similar pump for my pump that I used constantly for at least 7 years. This pump works well with the bubbler I use in the winter time from November to April each year 24-7.