I don't think you get many choices, or maybe you get too many.
1. simple wax ring. One size fits all. Some installations may
2. same wax ring with a plastic sleeve to help guide "stuff" into
the hole. May require an extra #1.
3. Same wax ring bonded on a piece of felt. Supposedly stronger?
May require and extra #1 or #3.
4. Some manufactures make an extra thick ring, usually with the
sleeve to reduce the chances of needing an extra #1.
Fluidmaster makes a waxless ring. I have not tried one.
Keep the whole world singing . . . .
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