Toilet Wax Ring Installation Question

[jk60]

I've just ordered a Toto Ultramax toilet to replace an older Kohler in my bathroom. I have an installation question dealing with which wax ring to use. Should I use one with a plastic horn or just straight wax? The drain pipe diameter is 4-inches and the Kohler was originally installed using a wax ring with a plastic horn. The drain pipe flange sits slightly above the finished floor so I know that one wax ring will do the job.

Thank you,

Jerry

[Terry]

One wax ring will do if the flange is slightly higher than the floor.

Either one could work, though if the toilet rocks on the plastic horn, I would have the hornless one ready to go.

[jk60]

Thank you for your advice. Having two on hand will certainly save a trip to the store. I have just one more question with regard to the wax rings with a horn. Are there different sizes (diameter) for the bottom of the horn or is there only one standard size? The one that was installed there previously has a diameter of about 2.75-inches.

Thank you,

Jerry

[Terry]

They seem pretty standard to me.