Combination Fill and Relief Valve, Body Material Iron, Inlet Type FNPT, Outlet Type FNPT, Inlet Size 1/2 in, Outlet Size 1/2 in, Factory Set Pressure 15 psi, Pressure Range 10 to 100 psi, Not Applicable BtuH, Disc Material Silicone, Overall Height 5 1/16 in, Application Commercial and Residential Hydronic Heating Systems, Overall Length 6 1/2 in, Seat Material Bronze, Spring Material Stainless Steel, Temp. Range 0 Degrees to 212 Degrees F, Test Lever Test Lever Included, Standards Not Applicable. This item has been restricted from sale in the following state (s): []