KOHLER GENUINE PART GP1039444 FLAPPER FOR ONE-PIECE TOILETS WITH CLASS FIVE TECHNOLOGY

While the product does not come with instructions, I feel like that's not necessarily a drawback. If you are peeking inside a toilet tank and getting your hands in it, you should have some kind of knowledge of what you are trying to accomplish. Regardless, this is a very simple and straightforward replacement, and if you need help you can search the internet as easy as you can search for the product on Amazon. Quality is OEM and solid. These will last a minimum of several years with normal use / environment. The use of chemical agents in the tank water will increase the degradation of items in the tank, so it's not advised. A simple 30 second swap wil ltake care of a leaky, aged flapper. It does come with the chain and clip for easy attachment to the handle rod. No need to re-use or remove the old chain and clip. Economical and functional.

Fit quality and price was great Easy to install and sturdy Seals like it should

Our toilet has been leaking for a very long time and I’ve replaced the flapper three times with different flappers and the toilet still kept leaking. We had a plumber come out a replace other parts in the toilet and it still leaked. The plumber came back out and said I can’t use a generic flapper on a Kohler toilet. So I ordered this flapper and it Finally stopped my toilet from constantly draining! It only took a few seconds to install and fits perfectly!

Perfect replacement for broken flapper on 8 yo toilet (it should have lasted longer though - Kohler issue). Part number now has GP prefix, but it's the same size (and looks the same). Doesn’t last very long - had to replace these every 5-6 years on the toilets with regular use. I make sure to have one on hand always and order another when I use the one in stock. May be a design flaw. The rubber is fine but the hinge/pivot points break so that it no longer sits right and doesn’t create a seal. One tip noted in other reviews as well - look under the cover of the tank lid for a list of parts on Kohler toilets. Flappers are different, but that will show which part number you need.

This was the correct flapper for my one piece toilet. I had purchased another, but it was just a 1/4 inch too small and didn't seal properly. Easy to install and working well.

The noise from the bathroom occur everyday for 2 weeks. We didn't know what it was. When we opened the toilet, we noticed that the flapper was breaking down (parts of plastic was broken). As a result, water was not contained in the toilet. Bought this flapper to replace the old. It was the perfect size. No more noise now. Thank God! Will recommend this purchase.

I got this for my 10 year old Kohler Cimarron toilet. The fit is perfect. All you need to do is remove the old one and the metal latch and 2 hole ups on both sides fit perfectly. My toilet is no longer leaking water at night And is flushing fine. My only complaint is, there was no instructions, I had to YouTube how to do it. Although it was very easy, it should have come with some instructions. And I wish it came in a different color like blue or white.

This is exactly what I needed. I had to replace a 7 yr. old flapper so I purchased a Kohler flapper at HD and I didn't know that it was the wrong one. It was for a 2 piece toilet. I installed it and it kept leaking water and giving partial flushes all by itself. I looked on Amazon and found this and it is PERFECT. It's for a one piece toilet which IS what I have. It seals the opening and doesn't leak. I also took off the top of the tank and when I turned it over, I found a diagram of all the Kohler parts and their numbers. The number matched the number on Amazon! None of my local stores had this part. Why do I bother going to the store when I can find everything I need on Amazon?

Fit perfectly!

Works perfect

Just what I needed

Ordered one previously and the diameter was wrong; That said, my Wife thinks this one is a perfect fit. Happy Wife, Happy Life.

Fits perfect, great product!