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Amazon.com: ICOOL 16 Ft. Mini Split Line Set, 1/4" & 1/2" O.D. Twin Copper Pipes, 3/8" Thickened PE Insulated Coil Copper Line for Air Conditioner HVAC Refrigeration and Heating Equipment, with Fittings :
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Master Pro Series 50 Foot Oxygen Acetylene Hose Twin Welding Hose Set, 1/4 Inch B
Master Pro Series 50 Foot Oxygen Acetylene Hose Twin Welding Hose Set, 1/4 Inch B Fittings, 9/16”-18 - Oxy Acetylene Cutting Torch Hoses, Welder Gas Hose Cut Metal, Green Red, Grade R,
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Twin Hose Assembly 8 Inches: Gas Welding Hoses: Amazon.com: Tools & Home Improvement