Water Heater Relief Valve; Type Automatic; Inlet Size 3/4 Inch; Outlet Size 3/4 Inch; End Connection Male Threaded x Female Threaded; Body Material ASTM B584 Bronze; Spring Material Stainless Steel; Seat Material Silicone; Temperature Rating 210 Deg F; Pressure Rating 64 PSIG; Inclusions/Features Thermostat, Extended Shank; Application Water Heater; Applicable Standard ISO 9001, ASME HV, ANSI Z21.22, HUD/FHA, CSA (Canada and US); Element Length 3 Inch; Capacity 1050000 BTU/Hour