The Danco Toilet Flapper in White Rubber is a straightforward, reliable solution for a dripping or noisy toilet. Designed to seal the flush valve effectively, it stops leaks and helps your toilet use water only when you intend it to.
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Durable rubber seal delivers flexible, long-lasting performance that resists wear from regular flush cycles and household water quality.
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Compatibility with popular brands tailored for Kohler and Sterling toilets, making it a practical choice for many standard tanks.
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White, inconspicuous appearance blends with most tank interiors, maintaining a clean, unobtrusive look inside the tank.
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Single-piece, carded packaging designed for easy retail display and straightforward replacement in the field; includes 1 flapper and no handles or hardware.
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Simple, effective installation - swap out the old flapper by disconnecting the chain, removing the worn piece, and seating the new rubber flapper securely against the flush valve seat. Reattach the chain to restore proper flush timing.
Why replace your flapper?
A worn or mis-seated toilet flapper is a primary cause of running toilets and wasted water. Replacing with this Danco flapper restores a tight seal, stops phantom flushes, and reduces water bills. It’s a pragmatic upgrade for homeowners, renters, and maintenance pros who want a dependable fix without fuss.
Ideal use cases
- To stop a constant toilet leak or running sound after prolonged use
- When a Kohler or Sterling toilet exhibits weak or inconsistent flush performance
- As a cost-effective, on-brand replacement part during routine toilet maintenance
Tips for best results
Before installation, turn off the water supply and drain the tank to ensure a clean, dry seating surface. Inspect the flush valve seat for debris and wipe clean. After installation, slowly turn the water back on and perform multiple test flushes to confirm a complete seal with no leaks. If the toilet continues to run, check that the flapper is properly aligned with the valve seat and that the chain has the correct tension—neither too tight nor too loose.