Continuous Run Unloader Valve, Inlet Size 1/8 in, Inlet Type NPT, Inlet Gender Female, Outlet Size 1/2 in, Outlet Type NPT, Outlet Gender Female, Minimum Preset Pressure 145 psi, Maximum Operating Pressure 250 psi, Minimum Operating Pressure 175 psi, Adjustable Pressure Yes, Maximum Air Flow 40 cfm, Body Material Brass