Female Swivel Hose x Male Hose Stop Valve w/ Water Hammer Arrester, Lead Free (Brass)

Use Dahl Water Hammer Arrester Valves to control water hammer created by washing machines, dishwashers, icemakers, single lever faucets, and even toilets. Features: * Unlike conventional standpipes, air risers or air chambers that become waterlogged, dahl utilizes an ASSE1010 AA Arrester with a dual O-ring piston that maintains a permanent cushion of air to absorb pressure spikes * Extends life and protects appliances and fixtures from water hammer damage * Compact integral design * Install vertically, horizontally, or at any angle * Available to suit most end-of-line pipe types and sizes * Retrofit models install in just minutes!