A Water hammer arrestor with a 1/2″ MIP (Male Iron Pipe) Thread. The sliding piston absorbs sudden pressure changes and keeps the pipes from banging. When a valve closes quickly and stops the flow, that momentum shakes and pounds pipes. A water hammer arrestor cures this condition with a cushion of air that absorbs the momentum.

Absorbs the water shock caused by quick closing valves in dishwashers, sinks, showers, toilets, icemakers and washing machines