Inlet connection: swivel 3/4" female hose thread. Outlet connection: 3/4" male hose thread. Commonly used for washing machine installation (in-line with hot and cold water valves) to protect appliance and plumbing system from effects of pressure surges. The mini-rested design incorporates a poly piston with (2) EPDM, silicon lubricated O-rings, which moves inside solid copper chamber and creates a pressurized cushion of air, completely sealed off the water, which prevents the loss of air in the chamber. from the water system that prevents the air charge from being lost. Certified by ASSE to the ANSI/ASSE 1010-2004 Standard.
Not for potable water applications.