Temperature and Pressure Relief Valve; Type Self-Closing; Inlet Size 3/4 Inch; Outlet Size 3/4 Inch; End Connection Male Threaded x Female Threaded; Body Material Copper Alloy; Spring Material Stainless Steel; Set Pressure Range 150 PSI; Temperature Rating 210 Deg F; Pressure Rating 75 to 150 PSI; Application Water Heater, Hot Water Storage Tank; Applicable Standard ANSI Z21.22, ASME, CSA; Lead-Free; Overall Dimension 1-5/32 Inch Width x 3-11/16 Inch Height; Shank Length 1-3/16 Inch; Thermostat Length 8 Inch; Steam Rating 105000 BTU/Hour