Temperature and Pressure Relief Valve, Inlet Type MNPT, Outlet Type FNPT, Inlet Size 3/4 in, Outlet Size 3/4 in, Thermostat Length 4 3/4 in, Body Height 6 in, 1,912,000 BtuH, Factory Set Pressure 150 psi, Max. Temp. 210 Degrees F, Shank Length Standard, Auto Re-Seating Yes, Body Material Bronze, Spring Material Stainless Steel, Body Width 2 1/2 in, Standards Certified ANSI Z21.22 And CSA 4.4, Listed By ASME And CSA