Need to know for which Kohler tank is this gasket meant. Thank you.

I used the parts lookup feature on the website and found this. It did the trick - fixed the leak - and am very happy with it.

[This review was collected as part of a promotion.] I bought as a replacement to a previous model. It didn’t fit

I had a small leak between the tank and bowl of my Kohler toilet. I bought and replaced this gasket and it worked perfectly.