Specialty Gas Regulator Maximum Gauge Outlet Pressure 4 000 psig Number of Stages Single Stage Compatible Gas Type Carbon Dioxide Control Type Knob Inlet Connection Type NGO Inlet Connection Gender Male Inlet Connection Size 0.825 In.-14 Outlet Pressure (Maximum) 15 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 320