I was on a job about a month ago. The job was going great, until customer said those 3 famous words," While your here", can you look at my toilet. It was a Kohler Devonshire, with that wide a$$ flapper, & the flapper was concave so bad, I don't know how it held water. I knew I had the flapper, but had to look through all my Kohler parts drawers. Thats when I realized, I have atleast 10, to 12 different flappers, just for Kohler. Totally outrageous. I haven't even had to deal with one of those O ring things on the canister type flush valve yet.
I guess the word UNIVERSAL, is against Kohlers,.......(sorry to mention it again)......religion.:laughing: