



Genuine Part Gp1059291 Canister Seal
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Dr Dave
> 3 dayNot as easy to replace as a standard flapper, but easy enough. Genuine part works exactly like the original and fit perfect. I appreciate that they did not gouge the price too much, although Im sure the production price is like 10 cents. Appreciate the next day shipping when the toilet is not working, needless to say.
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D Prock
> 3 dayI purchased this to fix a toilet that was periodically refilling throughout the day due to an insecure seal under the flush canister. Im not much of a handyman, but I took a chance on this since it was only about $5, much cheaper than calling a plumber. It turned out to be an easy fix, and the toilet has not been losing water since installing the new canister seal about a month ago.
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tony
Greater than one weekproduct did what promised
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Joemama
> 3 dayI have a Kohler Wellworth toilet with tank 4436 (tank numbers are stamped on the inside of the tank). I pulled up the parts list on the Kohler site and saw that this was the gasket required. My old gasket was red and severely degraded (although I didnt see how bad until I pulled it off and replaced with this yellow one). Toilet tank would slowly empty until the refill was triggered at random times during the day. Replacement was very easy, and I didnt remove the chain, you can access everything without doing that. Very easy repair and saved me a plumbers visit, my friend paid $139 for the same job. I appreciate all the comments left here in the reviews that explained so clearly how to do this.
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HiJk Bakerfield CA
> 3 dayWorks perfectly and looks great !
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RAR
> 3 dayThe hardest part of making the replacement was figuring out how to. The gasket, however, leaks after just 12 1/2 months. The original gasket lasted 15 years. Same water. Same usage. Same brand of gasket.
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Gabriels Dad
07-06-2025Had I known how ridiculously easy this was to fix, I would have done it months ago. The hardest part was probably putting the canister back in the cradle once the seal was replaced. The whole process will take about 3 minutes, maybe 4 if you struggle a bit like I did trying to get the canister to line up so it will fit back in the slot The seal is a perfect fit. The genuine replacement Kohler seal is a bit pricey for what it is, just a simple rubberized ring, but Im guessing what youre paying for is the composition of the rubber which will resist corrosion and disintegration and likely outlast the cheap no-name brand knockoffs. The initial seal lasted 6 yrs. Im guessing this will also last that long.
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I. Villarin
> 3 dayMy in-suite toilet would every so often sound like it a was automatically flushing itself all through the freakin’ night! It kept me awake! I thought it was the flush mechanism so I changed that! Then I observed that it was this O- ring that needed to be replaced! This item is the original Kohler replacement. Don’t buy the fake ones, you’ll just waste your money. These aren’t so expensive anyways. Save yourself the headache and get this original replacement! Getting my well deserved zzzzs!!!
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Brian Bartz
Greater than one weekI ordered one of these gaskets along with a whole new flush assembly. On a whim, I tried the gasket alone before replacing the whole assembly, and it was less than five minutes start to finish. Great tutorial videos on YouTube. Great update to a bad factory gasket.
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Bernie P.
> 3 daybeen working good. No problems.