Aquael Valve Block for Oxyboost pumps 150/200/300 (100987)

Valve Block/Flow Control for Aquael Oxyboost pumps 150/200/300. Replace valve block and diaphragm to bring the pump back original pressure and volume. One way valves and diaphragms wear out over time and this is an inexpensive way to repair a pump and increase its useful life.