Temperature and Pressure Relief Valve Inlet Type MNPT Outlet Type FNPT Inlet Size 1/64 in Outlet Size 1/64 in Thermostat Length 19 in Body Height 1/64 in AGA 100 000 ASME 400 000 BtuH Factory Set Pressure 150 psi Max Temp 210 Degrees F Shank Length 3/4 in Auto Re-Seating No Body Material Brass Spring Material Stainless Steel