Specialty Gas Regulator Maximum Gauge Outlet Pressure 4 000 psig Number of Stages Two Stage Compatible Gas Type Hydrogen Methane Control Type Knob Inlet Connection Type NGO Inlet Connection Gender Male Inlet Connection Size 0.965 In.-14 Outlet Pressure (Maximum) 250 psig Outlet Connection Gender Male Outlet Connection Size 1/4 in Outlet Connection Type NPT Body Material Brass Body Finish Chrome Plated Diaphragm Material Neoprene CGA Number CGA 350