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Would using a no hub coupling be suitable for permanently tying a cast iron toilet drain pipe to plastic? : r/Plumbing
Leaking donut connection to cast iron hub | Terry Love Plumbing Advice & Remodel DIY & Professional Forum
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NHTCA300 - Bluefin NHTCA300 - 3" x 3" No Hub Transition Coupling (Cast Iron to PVC, Steel or Extra-Heavy Cast Iron)
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IDEAL-TRIDON 3-in. PVC No Hub Coupling for Cast Iron DWV Pipe - NSF Certified, IAPMO & CSA Listed in the PVC Pipe & Fittings department at Lowes.com
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