Victor Technologies 0780-1221 L-700E-500 High Flow Line Pipeline Devices Air/Oxygen/Inert Gas Regulator, 10-200 psig Delivery Range, 1/2" NPT F Inlet Connection Go to amazon.com Related posts Best continuous delivery pipeline FeatureGas service: air, Oxygen, inert GasI range (psig): 10-2001/2'' NPT inlet & outlet portsDesigned for Gas distribution system (pipeline) DescriptionThis L 700 Series regulator is a pipeline device with high flow line capabilities and maintaining consistent delivery pressure.