Genuine Part Gp1059291 Canister Seal

Overhauled my toilet due to hissing during refill. Since I was replacing my fill valve figured the canister could use a new seal too. Replacing the seal took about 5 minutes after watching the Kohlers video. Hardest part for me was disconnecting the chain which wasnt cooperating lol. I cleaned the old seal residue from the canister and where it seats to and installed the new seal, now its good as new.

I had a condition that my wife researched and found to be called phantom flush. The toilet was slowly leaking and having to refill itself every few minutes. I investigated and found that if I moved the seal around a little on the canister valve, it would stop... but only until someone flushed again. In the end, I realized that the original seal seemed a little stretched out, so I ordered this one. I went with OEM after reading some so-so reviews on the aftermarket seals. This was a little bit costlier, but three months of not having to hear the toilet randomly refilling itself all through the night makes it totally worth it. If this one fails over time, I will absolutely buy it again.

First, I bought a cheap 3rd-party seal that was supposed to be compatible, but it leaked because the diameter was actually wrong. Then I bought this official Kohler seal, and it works great.

Had a Kohler toilet that was getting increasingly hard to flush. It was obvious the flapper was sticking somehow, but when I opened the tank I was baffled by the weird design. I went to YouTube and found a video that showed how to twist the center stalk of the “flapper” and remove the long tube. Sure enough the old red seal valve/ring was falling apart and gummy like an old rubber band. Had to run a pocket knife around both sides to remove the crusty bits and then the new yellow gasket just gets stretched on. 2 minutes on YouTube, 5 mins removing the old gasket, and 30 seconds to install the new one.

Took a chance and tried to go cheap - bought a two-pack of aftermarket (non-Kohler) seals that sold for the same price as one Kohler. Wasted my time and money. Both leaked from the start. After taking a wire brush to all contact surfaces to ensure old seal left no remnants. Flipped each to see if I could seal - no dice. Kohler seal came a few days after order. Not a drop leaks anymore. Dont waste time and try to skimp. Go straight to Kohler. Do not pass go. Do not collect $200.

ALL GOOD

Took 30 seconds to replace. Easy and perfect . No leak down just like new.

I surfed the web to find out why my Kohler class five toilet would periodically run. The consensus was that this little yellow gasket was worn and needed to be replaced. There was a great Kohler video that explains the steps to make this little fix. I replaced the gasket using the steps and the toilet was STILL running periodically so I flushed it once and checked it a half hour later and realized it was still losing water in the tank. I turned off the water and flushed the tank to empty it. Then looked closely at the side that did not have the gasket and realized there were TINY pieces of plastic from the old gasket that needed to be cleaned off. Once that was done, I turned the water back on and checked it a half hour later and the water level had not decreased. So, that step is not mentioned in the video but it is important when you are replacing this yellow seal.

Our home was built in 2013 and the builder put in Kohler products throughout the house. Fast forward to 2021 and some toilet flush mechanisms were getting harder to flush and it turns out that these gaskets need to be replaced to maintain a tight and smooth seal between the tank drain and filll cylinder, especially if you have hard water or big changes in temperature. In our case, the hard water basically dissolved the original gaskets and it was sticking to the tank drain hole when flushing. The new one is super easy to install taking only 2 to 4 minutes. After the install, the flush mechanism is super smooth and water seal is tight. Stick with original Kohler parts for exact measure and perfect fit.

I have a low-flow Kohler toilet that had a phantom flush. That is where your valve seal has gotten old and the water leaks out slowly. All of a sudden you hear the toilet start to fill again all by itself in a pattern. That is called the phantom flush. A very slow leak into the bowl that finally results in the water level getting so low in the tank that it flushes itself. Did some research and found out it was time to change the valve seal. Seems like they only last a couple of years (less if you use chemicals in the tank itself for cleaning). Bought this inexpensive little piece. Looked on YouTube for a video on replacing a canister flush valve seal. And voila! Toilet fixed and no repairman bill. Bought 2 of these at the same time so Id have a spare a couple of years down the road when this one fails. $7 is much better than a $75 plumber call! Do it yourself - you can do it if I did!