Specialty Gas Regulator, Maximum Gauge Outlet Pressure 4,000 psig, Number of Stages Single Stage, Compatible Gas Type Nitrogen, Control Type T-Handle, Inlet Connection Type NGO, Inlet Connection Gender Female, Inlet Connection Size 1.045 In.-14, Outlet Pressure (Maximum) 3,000 psig, Outlet Connection Gender Female, Outlet Connection Size 1/4 in, Outlet Connection Type NPT, Body Material Brass, Body Finish Polished, Diaphragm Material Neoprene, CGA Number CGA 680