Kohler Flapper GP1079948 | Noels Pumbing Supply

“Kohler GP83064 Toilet Tank Flapper for Select On Piece Toilets” has been added to your cart. View cart

Red rubber flapper with yellow foam float and stainless chain.

WHAT OUR CUSTOMERS SAY…

“Sent Noel’s plumbing and image of what was needed, not being able to find it. They had it sent to me within a week and fitment was perfect. 👍 ”

-Lorenzo H.

03/12/2026

$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: Toilet Flappers Tags: Kohler, Sterling

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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

Yes, this is the OEM recommended part.

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.

WHAT OUR CUSTOMERS SAY…

“I have been here a few times. And I have found it the most helpful and best place I've been to in this area. They explain to me what I need not what I'm trying to tell them what I want. Would recommend to anybody who needed help and plumbing parts. ”

-Joey F