Flexible Coupling for PVC Waste Stack

[GLG]

Can I use a flexible coupling (rubber with SS strap clamps) on a vertical, 4" PVC waste stack? Does code allow it?

Thank you.

Gary

 

[wwhitney]

Can I use a flexible coupling (rubber with SS strap clamps) on a vertical, 4" PVC waste stack? Does code allow it?

Not that type. You need the type with a full stainless shield. E.g. Fernco Proflex or Mission Rubber Bandseal.

Cheers, Wayne