Adjustable Relief Valve, Body Material PVC, Inlet Type FNPT, Outlet Type FNPT, Inlet Size 1 1/2 in, Outlet Size 1 1/2 in, Factory Set Pressure 25 psi, Pressure Range 5 to 75 psi, Not Applicable BtuH, Disc Material PVC, Overall Height 13 1/4 in, Overall Length 4 5/16 in, Seat Material FPM, Spring Material Stainless Steel, Temp. Range 40 Degrees to 140 Degrees F, Test Lever Test Lever Not Included, Standards ASTM D1784. This item has been restricted from sale in the following state (s): []