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Kohler GP1105825 Toilet Flapper with Float

Red rubber flapper with yellow foam float and stainless chain.

chat iconWHAT OUR CUSTOMERS SAY…

“After trying all over my area, I couldn't find the part for the faucet in my older house. The part I needed was found on the first try on their website and ordering was very easy. It was after hours, but someone responded to my text right away. The part was shipped the next business day. After putting the new part in the faucet works better than it has for years! ”
-Mark B.
06/25/2026

$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…

“Y'all are amazing. I live in Texas and it's faster to order express from Noel's than go to local parts stores. Customers can text Noel's a picture of the part they need and Noel's will find that part or the equivalent and text the link. They have 2-3 day shipping available. The staff answers the phone quickly, politely and they know their stuff! The unit I needed plumbing parts for was built in the 30s. No matter, Noels has me covered. I highly recommend them. Thank you Noel's for your efficient, old school excellence combined with current technology! You have saved me so much time, money, and aggravation! A++++++ ”
-Thalia,
07/03/2026
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