Gas Regulator, Maximum Gauge Outlet Pressure 3,000 psig, Number of Stages Single Stage, Compatible Gas Type Oxygen, Control Type T-Handle, Inlet Connection Type NGO, Inlet Connection Gender Male, Inlet Connection Size 0.825 In.-14, Outlet Pressure (Maximum) 80 psig, Outlet Connection Gender Male, Outlet Connection Size 9/16 In.-18, Outlet Connection Type UNF, Body Material Brass, Diaphragm Material Neoprene, CGA Number CGA 540, Application General Purpose, Body Diameter 2.5 in