Air/Acetylene torch kit features a "B" tank connection and is designed for use in brazing applications only. - It features a quick-disconnect handle and tips, while the color-coded O-rings enable quick gas identification. - Swirl combustion tips help you obtain higher target temperatures. Gas Service / Acetylene Torch Handle / G4 Pressure Regulator / AR-B Series / X-4B Inlet Connection / CGA-520 Outlet Connection / CGA-520 Welding Nozzles / A-14, A-5 Includes / A-14 tip, A-5 tip, AH-12 hose, G4 handle, tank key Standards / UL Listed Duty Rating / Heavy Duty