I purchased a Aquia toilet and noticed that the plastic adapter has a 3 1/8” hole. My toilet flange is an inside flange with a waste hole of 2 5/8”. Will the reduction in size cause me any problems when waste goes from 3 1/8" to 2 5/8"?
What you have is a standard 4x3 closet flange.
Not a problem.
Consumer report on the new toilets
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