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Kohler K-GP1059291 Seal for All Single Flush Class 5 and 6 Canister Toilets

Birght yellow rubber seal.

chat iconWHAT OUR CUSTOMERS SAY…

“These people were extremely helpful in taking me through replacing a 25 year old hard water frozen cartridge on my Philrich sink faucet. They were able to identify the correct part I needed from a photo I sent (I had it figured out wrong). I was pleasantly surprised they had an obscure part like this, but they also told me how to extract the old one when I couldn’t get it out. They said to unscrew it after I had concluded from YouTube the old cartridge was supposed to just slide out. It threaded out as they said and saved me buying a cartridge extractor and a hernia. The whole experience has been excellent. ”
-Pete L.
03/10/2026

$14.47

 

The Kohler GP1059291 is a genuine Kohler replacement canister seal (gasket) for single-flush Class 5 and Class 6 canister toilets. It is designed to prevent leaks and is made of a durable, chemical-resistant yellow rubber or silicone material.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

SKU: 16950 Category: Tag:

Stop wasting water and lower your utility bills with the Genuine Kohler K-GP1059291 Canister Flush Valve Seal. Engineered specifically to fix a constantly running toilet or stop phantom flushing, this high-performance yellow gasket restores your toilet tank’s tight, leak-proof seal.

 

K-GP1059291

 

  • FEATURES
  • Kohler GENUINE Part
  • Replacement seal for single flush canister toilets
  • Chemical resistant and designed to withstand wear
  • Replaces red seal

 

 

 

 

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“Just before an event, we had a 9 7/8" round drain cover snap in half. It was an odd size and Noel's was the only place that seemed to have one that would fit. We couldn't leave the hole exposed during the event, and Noel's was kind enough to make sure it was overnighted to us. Their effort was truly appreciated and the cover fit perfectly! I highly recommend them! ”
-Linda C.
03/27/2026
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