Aro 666053 388 Double Diaphragm Air Pump - 1/2in., 13 GPM, 100 PSI
(1)
The Aro air pump 666053 388 is an air-operated double diaphragm pump. It's a positive displacement pump using two sets of flexible membranes to pump fluids. A series of check valves ensure the fluid can only travel in one direction through the chamber. Pump cycling will begin as air pressure is applied. Notable specs include a 20-100 PSI rating and a 13 GPM max.