unifit

I will be installing a carlyle toilet with the 12" unifit, the floor flange sits on top of the finished floor 3/8" high. My question is should I use a wax ring with a plastic flange or just a plain wax ring. I called toto direct and they recomend a #1 wax ring without flange,please help.

I would go with Toto, the single wax should work fine there without the horn.