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Kohler GP1105825 Toilet Flapper with Float

Red rubber flapper with yellow foam float and stainless chain.

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“Hey these guys are awesome! If you need a part for a fixture they have it send a picture and they can tell you what it is, they know their stuff, they have the weird obscure things you can't find unless you get a whole trim kit or whatever. Worth the trip and the money. They save you tons of time definitely visit ”
-Justin H.
06/05/2026

$15.27

 

The Kohler GP1105825 is a genuine replacement flapper and float kit designed specifically for 1.28 gallons per flush (GPF) toilets. It is primarily compatible with Sterling and select Kohler Windham two-piece toilet models.

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: 54825 Category: Tags: ,

The Kohler GP1105825 is a genuine replacement flapper and float kit designed primarily for Sterling 1.28 gallons per flush (GPF) toilets. This red, 2-inch rubber flapper is engineered to fix common issues like “ghost flushing,” intermittent leaks, or continuous running by restoring a reliable seal against the flush valve.

 

GP1105825

 

  • Kohler GENUINE Part
  • Replacement flapper with float kit for various Kohler toilets
  • Engineered to promote product longevity
  • Made with premium materials for enhanced durability
  • For 1.28 gpf toilets only
  • For 1.6 gpf toilets, use GP85160
  • For use with Sterling Toilets

 

 

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…

“The vacuum breaker on my outdoor spigot failed and Noel's Plumbing was the only placeI could find that had the appropriate mfr. part. I sent a text with photos on Wednesday evening to make sure the part I found was correct. In less than 2 hours later, I had a reply confirming it was the correct part. Placed my order that evening and received the part on Saturday afternoon (about 2.75 days) and my plumbing issue was resolved! I highly recommend - I really appreciated the prompt and pleasant response. ”
-Kimberly S.
04/25/2026
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