Temperature and Pressure Relief Valve, Inlet Type FNPT, Outlet Type FNPT, Inlet Size 1 in, Outlet Size 1 in, Thermostat Length 6 in, Body Height 5 1/2 in, 3,085,000 BtuH, Factory Set Pressure 150 psi, Max. Temp. 210 Degrees F, Shank Length Standard, Auto Re-Seating Yes, Body Material Lead-Free Brass, Spring Material Tempered Chrome Silicone Wire, Body Width 2 5/8 in, Standards ANSI Z21.22 & ASME SectionIV Rated