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Anvil 8700157954, Steel Pipe Fitting, Coupling, 1/4" NPT Female, Black Finish: Amazon.com: Tools & Home Improvement
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SteelTek 1-1/4-in Structural Galvanized Coupling in the Structural Pipe & Fittings department at Lowes.com
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Stainless Steel 304 Cast Pipe Fitting, Coupling, Class 150, 1/2" NPT Female: Industrial Pipe Fittings: Amazon.com: Industrial & Scientific
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Stainless Steel 304 Cast Pipe Fitting, Reducing Coupling, Class 150, 1-1/2" X 1" NPT Female: Industrial Pipe Fittings: Amazon.com: Tools & Home Improvement
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