Catalog Welding Gas Equipment Gas Regulators & Flowmeters Gas regulators control the pressure of gas. Gas flowmeters control gas flow, while flowmeter regulators control both gas flow and pressure. Gas switchover systems provide a continuous flow of gas to an application. ◀◀ ◀ ▶ ▶▶ High Purity Gas Regulator: Single Stage, CGA 580 Inlet, 1/4 in NPT M Outlet, 50 psig Gas Regulator: Single Stage, CGA 540 Inlet, 9/16"-18 M RH Outlet, 200 psig, Oxygen High Purity Gas Regulator: Single Stage, CGA 350 Inlet, 1/4 in Tube Outlet, 125 psig High Purity Gas Regulator: Two Stage, CGA 320 Inlet, 1/4 in NPT F Outlet, 150 psig High Purity Gas Regulator: Two Stage, CGA 350 Inlet, 1/4 in NPT F Outlet, 22 psig High Purity Gas Regulator: Single Stage, CGA 350 Inlet, 1/4 in Tube Outlet, 50 psig ◀◀ ◀ ▶ ▶▶