Relief Valve, Body Material 316 Stainless Steel, Inlet Type MNPT, Outlet Type MNPT, Inlet Size 1/4 in, Outlet Size 1/4 in, Factory Set Pressure 50 psi, Not Applicable BtuH, Overall Height 3 1/2 in, Overall Length 2 in, Seat Material EPDM, Test Lever Test Lever Not Included, Standards Not Applicable