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1056-33RC - Fernco 1056-33RC - 3" x 3" Strong Back PVC Shielded Coupling (Connects Cast Iron and PVC)
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Fernco PROFLEX P3000-44 Shielded Pipe Coupling for Cast Iron, Plastic, Steel or Extra Heavy Cast Iron Plumbing Connections - Pipe Fittings - Amazon.com
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1002-44RC - Fernco 1002-44RC - 4" x 4" Strong Back PVC Shielded Coupling (Clay to Cast Iron, PVC, Steel, Lead)
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Fernco 4" ICON RC Pushfit DWV Coupling Sheared Off Pipe Connector with Shielded Coupler, Plastic, Cast Iron and Copper to Clay - Amazon.com
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The Plumber's Choice Shielded 4 in. Steel Transition Coupling Connects Plastic or Extra Heavy Cast Iron H-38266 - The Home Depot
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