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Stainless Steel 304 Cast Pipe Fitting, Reducing Coupling, Class 150, 1" X 1/2" NPT Female: Industrial Pipe Fittings: Amazon.com: Tools & Home Improvement
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Southland 1 in. x 3/4 in. Black Malleable Iron FPT x FPT Reducing Coupling Fitting 521-354HN - The Home Depot
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Charlotte Pipe 1-in Schedule 40 PVC Couplings (10-Pack) in the PVC Pipe & Fittings department at Lowes.com
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1" 15T Splined Coupling G & G Mfg 163-1615 | Keyed, Splined & Hex 1 Piece Solid Couplers | Shaft Couplers | Power Transmission | www.surpluscenter.com
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Homewerks Worldwide 1-1/4-in Schedule 40 PVC Coupling in the PVC Pipe & Fittings department at Lowes.com
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