The Luft Pump delivers 7.0 psi against water pressure, making it an excellent choice for ponds. Its heavy rubber diaphragm cannot be damaged by back pressure; this means if an airstone has not been maintained, the diaphragm won't be damaged. The adjustable rheostat increases air flow by regulating electricity, not by blocking air flow, allowing more efficient, economical performance. Can be used with multiple valves or T-connectors for multiple devices. Quiet operation. Includes replaceable airline filters and airline clamp. 6-3/4" x 3-1/2" x 3". 0.14 CFM. For ponds under 500 gallons.
Please click on "More Information" for instructions for replacing rubber diaphragm.