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Made in USA 3/4" 316 Stainless Steel Pipe Hex Coupling FNPT Ends, 4,800 psi P-3/4-HC - 35577345 - Penn Tool Co., Inc
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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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Amazon.com: Beduan Stainless Steel Cast Pipe Coupling, 3/4" x 3/4" Female Pipe Coupler Connector (1-1/4" Length, Pack of 2) : Industrial & Scientific
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Pipe Fittings Direct. 3/4 inch mechant steel full coupling, Class 150, Internal Thread X Internal Thread
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SteelTek 3/4-in Structural Galvanized Coupling in the Structural Pipe & Fittings department at Lowes.com
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