Reelcraft TW7450 OLP Twin 1/4-Inch by 50-Feet Spring Driven Hose Reel for Oxygen/Acetylene Gas Welding Independent dual swivel body machined on acetylene side to ensure proper installation Quality hose installed from factory with bumper Double sealed "O" rings prevent gas leakage Corrosion resistant baked-on powder coat finish Smooth operating nylon guide rollers