The Enviro ET40 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 ET40 is easy to service with a competitively priced service kit and is also supported by two-year warranty, With its weatherproof, robust construction it makes an ideal wastewater pump.
Efficiency & Cutoff: The ET40 pump operates under max efficiency up to 6 feet. It will decrease in efficiency at greater depths and will shutoff at 10 feet.