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The Plumber's Choice Shielded 8 in. Steel Transition Coupling Connects Cast Iron to Plastic or Extra Heavy Cast Iron H-38122 - The Home Depot
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Amazon.com: Pysrych Stainless Steel Coupling High Pressure Heavy Duty 3/8" NPT Female x 3/8" NPT Female Coupler Forged Pipe Fitting, Class 3000, 1pc : Industrial & Scientific
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