Air Release Valve, Inlet Size 1 in, Outlet Size 1/2 in, Application Clean Water, Min. Pressure 5 psi, Max. Pressure 175 psi, Max. Vent Capacity 6 scfm at 150 psi, Connection Type FNPT, Max. Fluid Temp. 250 Degrees F, Vacuum Pressure 29 in Hg, Body Material Cast Iron, Float Material 316 Stainless Steel, Standards AWWA C512, FM, NSF 372, NSF 61, UL. This item has been restricted from sale in the following state (s): []