Pressure Relief Valve, Body Material Copper Alloy, Inlet Type NPT, Outlet Type NPT, Inlet Size 3/4 in, Outlet Size 3/4 in, Factory Set Pressure 75 psi, Pressure Range 75 to 125 psi, 200,000 BtuH BtuH, Disc Material Silicone, Overall Height 3 3/16 in, Application Domestic Storage Tanks, Residential, Tankless Water Heaters, Overall Length 1 3/16 in, Spring Material Stainless Steel, Temp. Range 210 Degrees F, Test Lever Test Lever Included, Compliance ANSI Z21.22, BAA Compliant, CSA