Adjustable Antisiphon Relief Valve, Body Material Polypropylene, Inlet Type FNPT, Outlet Type FNPT, Inlet Size 1/2 in, Outlet Size 1/2 in, Factory Set Pressure 150 psi, Pressure Range 5 to 100 psi, Not Applicable BtuH, Overall Height 5 13/16 in, Application Anti-Siphon, Back-Pressure Regulator, Back-Pressure Valve, By-Pass Applications, Relief, Overall Length 2 1/2 in, Seat Material PTFE, Spring Material Zinc Plated, Temp. Range 32 Degrees to 180 Degrees F, Test Lever Test Lever Not Included. This item has been restricted from sale in the following state (s): []