Many thanks, when I first installed them (with the old floor below the flange) I felt there was considerable squish with the adapters which made me think I would be ok.

: : I am refinishing our bathroom floor and expect the finished floor be about the same height as (or possibly 1/8" at most lower than) the cast iron toilet flange installed in concrete. I'll be reinstalling one of the Toto Uni adapters, would you suspect I will be ok with a #10 wax seal?

: Should be. You will want the wax to squish some. You can hold the wax up to the adapter to see if there is some squish room.
: Terry Love