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Amazon.com: Beduan Stainless Steel Cast Pipe Fitting, Coupling, 1" x 1" Female Threaded (1-1/2" Length) : Industrial & Scientific
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Amazon.com: Quickun 304 Stainless Steel Pipe Coupling Fitting, 3/4" x 3/4" Female Pipe Coupler Connector Adapter Fitting (1.4" Length) : Industrial & Scientific
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CPC Style LC Series in-Line Pipe Thread Female Quick Connect Couplings Insert - China CPC LC Series Coupling, in-Line Quick Connect Coupling | Made-in-China.com
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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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