Here are 6 Kohler Toilet Flappers. The 3 inch, Rubber & Plastic Bar, Ball, Shark Fin or Flat flappers for Kohler toilets may be hard to find.
Replacing a Kohler toilet flapper is a relatively simple task that can be done in a few minutes.
Turn off the water supply to the toilet.
Flush the toilet to remove most of the water from the tank.
Use a sponge to absorb the remaining water.
Remove the worn flapper from the flush valve.
Install the new flapper, making sure that the chain is attached properly.
Turn the water supply to the toilet back on and check for leaks.