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Southland 3/4 in. x 1/2 in. Black Malleable Iron FPT x FPT Reducing Coupling Fitting 521-343HN - The Home Depot
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Fernco 1056-215 Reducing 2 in. x 1-1/2 in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Blue - GreyDock.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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Pipe Fittings Direct. 2 inch mechant steel full coupling, Class 150, Internal Thread X Internal Thread
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