How can 3" PVC pipe be connected to 3" no hub cast iron pipe?

You can use a neoprene connector that will just slip on the 3 inch cast iron and also the 3 inch PVC and then it has two stainless steel bands that you tighten up to seel it the pipe.

One brand is called a Fernco adapter.

Hi Yoohoon:

If this work will be above ground I would recommend that you purchase a 3" PVC x 3" cast iron SHIELDED CLAMP... see left image below. These are available at home depot, Lowe's or menards home improvement stores.

If the work will be below ground then you could purchase a 3" fernco coupling as seen in the picture on the right.

Let us know if you have questions...

MARK

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