Dual Welding Gas Gauges, Oxygen (CGA-540) Acetylene Portable Oxygen + Acetylene

[Use For]: Use for portable Oxygen Acetylene Welding and Cutting Kits, small acetylene regulator fits only acetylene MC tanks with CGA-200 valve. Compatible with Victor welding gas torch cutting. The hose connectors on both Oxygen and Acetylene regulators are Type B: 9/16″ – 18 RH & LH.