1/2″ CPVC Water Hammer Arrestor for Washing Machines 1/2″ CPVC Water Hammer Arrestor for Washing Machines. Addressing water hammer problems involves absorbing shock and reducing noise, protecting against annoying and potentially damaging water hammer effects. Straight water hammer arresters are ideal for attaching to washing machine supply valves or directly to washing machine tube connections. Working temperature range: 33 F to 180 F. Max working pressure: 250 PSI Burst pressure: 2900 PSI Can be installed any direction on both hot and cold lines




