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Flush Valve Seal for Kohler, 6 Pack Upgraded Silicone Material Canister Flush Valve Toilet Gasket Replacement Parts for K-GP1059291, Easy to Install and Uninstall

4.3 (2) Write Review
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$9.99

$ 4 .99 $4.99

In Stock

1.Size:1 Pack


About this item

  • Our flush valve seal is a perfect replacement for Kohler K-GP1059291 canister flush valve seal (red or yellow color). Compatible with K-4436 parts.
  • Our toilet seal is made of high quality silicone material, compared with ordinary rubber toilet seal,our product is better resistant to chlorine and other chemicals in the water supply and has a long service life. Fits perfectly with all Kohler toilets with a canister flush valve, can fixe leaks and prevents ghost flushes from happening. Outside Diameter: 3.375" Inside Diameter: 2.75".
  • Easy to install and uninstall: Compared to other products，our seal has a lip to improve ease of adding and removing new and old seals.
  • Installation steps: 1. Remove the valve stem by turning it from the bottom of the canister. 2. Remove the stem and old gasket, wipe off old rotting rubber on the surface. 3. Secure the inner ring of the seal around the tank lip. 4. Put it back and give it a few test rinses to make sure it's fully functioning and sealing properly.
  • Come with 6 pack flush valve seals.


Our flush valve seal is a perfect replacement for Kohler K-GP1059291 canister flush valve seal (red or yellow color). Compatible with K-4436 parts.
Our toilet seal is made of high quality silicone material, compared with ordinary rubber toilet seal,our product is better resistant to chlorine and other chemicals in the water supply and has a long service life. Fits perfectly with all Kohler toilets with a canister flush valve, can fixe leaks and prevents ghost flushes from happening. Outside Diameter: 3.375" Inside Diameter: 2.75".
Easy to install and uninstall: Compared to other products，our seal has a lip to improve ease of adding and removing new and old seals.
Installation steps: 1. Remove the valve stem by turning it from the bottom of the canister. 2. Remove the stem and old gasket, wipe off old rotting rubber on the surface. 3. Secure the inner ring of the seal around the tank lip. 4. Put it back and give it a few test rinses to make sure it's fully functioning and sealing properly.
Come with 6 pack flush valve seals.


RusiK
Reviewed in the United States on May 23, 2025
What a waste it still is leaking at that area! If i could give ZERO STARS I would have. Now im wasting my time to have to go to Staples or UPS to return- nonsense!!!
Don Z
Reviewed in the United States on April 13, 2025
This silicone flush valve seal turned out to be a great upgrade for my Kohler canister. Unlike the original rubber seal that tends to crack, wear out, or come loose over time, this one is made of durable silicone, which feels much more reliable and is not supposed to come loose over time. The listed dimensions are 2.6 inches for the inner diameter and 3.3 inches for the outer diameter. I was initially unsure if it would fit, since my canister's inner diameter measured at 3.0 inches. But the material is very flexible and the installation was a breeze—it snapped into place perfectly and created a solid seal. The whole swap took less than a minute, a huge time-saver compared to replacing the entire flush valve kit, which would’ve taken nearly an hour and still come with a rubber seal. Definitely a smart and efficient fix and highly recommended.