Temperature and Pressure Relief Valve, Inlet Type MNPT, Outlet Type FNPT, Inlet Size 1 in, Outlet Size 1 in, Thermostat Length 3 in, Body Height 8 5/8 in, 1,825,000 BtuH, Factory Set Pressure 125 psi, Max. Temp. 210 Degrees F, Shank Length Standard, Auto Re-Seating Yes, Body Material Bronze, Spring Material Stainless Steel, Body Width 1 9/16 in, Standards Certified ANSI Z21.22 And CSA 4.4, Listed By ASME And CSA