Part was not needed. It was returned but I take issue with having to pay shipping fees. My debit card was victimized by fraud so credit could not be applied back to debit card. I typically do not use Wayfair and will only do now to get my money back!

The unit is over 15 years old,d and the replacement part fits in perfectly.

Not drop in replacement for kohler. Needs access to beliw toilet. This Toilet style must be removed from floor and totally reinstalled. Not as advertised.

My toilet buttons had to be jiggled to stop the water running. I watched a video that said where the problem probably resides. Plumbing work is like going to the dentist - no one really wants to "kick the skunk" as one fix tends to create another repair. I set aside two hours to do this. At 1430 I shut the water off. At 1435 I pulled the errant part. At 1440 I reinstalled the new part supplied by Wayfair. At 1445 I turned the water back on. Everything worked and I'd spent 15 minutes...That makes me really happy.