Acetylene or LP Propane Gas Regulator AR-19 CGA 510 Inlet 2 1/2" Gauges Scrap Torch They prevent the reverse flow

They prevent the reverse flow of gas back through the hose toward the tanks

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Solid Brass Bar

Care must be taken to assure that the machine is of sufficient size to produce the required current

3/8" inside diameter twin welding hose

Acetylene or LP Propane Gas Regulator AR-19 CGA 510 Inlet 2 1/2" Gauges Scrap Torch They prevent the reverse flowAcetylene or LP Propane Gas Regulator AR 19 CGA 510 Inlet 2 1 2" Gauges. This regulator does not work with Port A Torch tanks.  Outlet for B sized welding hose, the standard in welding hose fittings. Features: Forged Brass Body Brass adjusting screw for smooth adjustment. 2 1 2" easy to read single scale gauges. 0 400 Supply Pressure Gauge 0 30 Delivery Pressure Gauge