Richard J Kinch wrote:

Padge Ahearn writes:

I replaced the flapper, yet the toilet continues to leak from the tank
to the bowl. Do you know of a technique to cause the flapper to seat
without leaking?

Surprise, low-profile designs can't use standard parts. You need the
pricey non-standard parts from Kohler.

Sad, but true. Get the Kohler part.
Jim