Temperature and Pressure Relief Valve, Inlet Type MNPT, Outlet Type FNPT, Inlet Size 3/4 in, Outlet Size 3/4 in, Thermostat Length 2 1/2 in, Body Height 7 1/4 in, 100,000 BtuH BtuH, Factory Set Pressure 150 psi, Max. Temp. 210 Degrees F, Shank Length Extended, Auto Re-Seating No, Body Material Brass, Spring Material Stainless Steel, Body Width 1 3/4 in, Standards ANSI Z21.22, CSA