Gas Regulator, Maximum Gauge Outlet Pressure 4,000 psig, Number of Stages Single Stage, Compatible Gas Type Nitrogen, Control Type Knob, Inlet Connection Type NGO, Inlet Connection Gender Male, Inlet Connection Size 0.965 In.-14, Outlet Pressure (Maximum) 450 psig, Outlet Connection Gender Female, Outlet Connection Size 7/16 In.-20, Outlet Connection Type Flared, Body Material Brass, Diaphragm Material Neoprene, CGA Number CGA 580, Application HVAC, Body Diameter 2 in