Hello! Just wondering if anyone has a idea on what size donut would work to connect 2in pvc to the hub in this cast iron main stack. I have not removed the lead and pipe yet, but did take some measurements. I think it is 3 1/4 I.D. I called Fernco and they only make a 3 in I.D. donut. Does this taper to the point where the 3in will work? Would love to have all this sorted before I remove it. Thanks for the help!
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