Regulator Mounting Type Cylinder Number of Stages Single Stage Compatible Gas Type Argon Carbon Dioxide Helium Nitrogen Oxygen Control Type Knob Maximum Inlet Pressure 4 350 psig Inlet Connection Size 1/4 in Inlet Connection Gender Female Inlet Connection Type NPT Outlet Pressure (Maximum) 50 psig Outlet Connection Gender Female Outlet Connection Size 1/4 in Outlet Connection Type NPT Gas Purity Rating 99.995 Percent Body Material Brass Diaphragm Material Neoprene