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

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“Do you need a vintage plumbing part and nobody seems to be able to find it in your area? Save yourself time and hassle and go to Noel's Plumbing website. You can text them a photo of the part and they will find it in minutes and give you the link to order it, all at a competitive price. My plumbers seem incapable of doing this and hand the job off to me. What can you do? But Noel's always has the 1930s parts I need or the aftermarket part that will get the job done. If I need it fast I can get it in 2-3 days from them and they know exactly what they are doing. It's a good old-fashioned plumbing store with all the parts you could possibly need and people who know how to get them. The service is top level. The staff pick up the phone after one or two rings. They are polite and KNOWLEDGABLE. I'm so tired of dealing with folks who can't find a chicken in a hen house. LOL. ”
-Bry W.
06/23/2026

$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…

“Really great experience getting parts for my 30-year old frost free silcocks. They not only had the parts available, but they were shipped within a couple of hours. Great job, thank you! ”
-Phil R
02/08/2026