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Korky Ultra Standard 2-inch Universal Rubber Toilet Flapper (100)

Key item features

  • Universal Fit: The most universal standard 2-inch flapper, compatible with all popular 2-inch toilet models.
  • Durable Material: Made from exclusive longest-lasting red rubber that resists chlorine, bacteria, and various water types.
  • Adjustable Settings: Flapper adjusts to match original toilet settings, reducing water waste by controlling the amount of water flushed.
  • Wide Compatibility: Fits tank sizes for 1.28, 1.6, 3.5, and 5 gallons per flush (gpf) toilets, including models from American Standard, Kohler, and TOTO.
  • Professional Choice: Preferred by plumbing professionals since 1954 for its reliability and performance.
  • Easy Installation: Includes one flapper and one stainless-steel chain, designed for a tight seal and simple installation.
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Customer ratings & reviews

4.5 out of 5 stars
stars629 ratings165 reviews
How item rating is calculated
  1. 5 stars77% (485)
  2. 4 stars10% (65)
  3. 3 stars5% (29)
  4. 2 stars2% (11)
  5. 1 star6% (39)

Reviews summary

Pros

  • : Installation typically takes under 5 minutes.
  • : Made with high-quality craftsmanship.
  • : Offered at an affordable cost.
  • : Accommodates most standard toilet sizes.

Neutral

  • : Can be effective at stopping leaks, but may not fit tightly or consistently.
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Showing 1-3 of 165 reviews

Mar 31, 2026
Jeff
Top Reviewer
Item details
Size: 2"
5 out of 5 stars review

Verified Purchase

Perfect fit and replacement

My old flapper was letting water through and the toilet would run every few minutes, which made my water bill shoot up sky high. Found this flapper at the local Walmart and it fits perfectly. The toilet immediately stopped the extra water loss with the excellent seal provided by the flapper. Now water only goes out when I flush.

Helpful?73T5B38WA15538470903
reply from Korky Toilet Genius

Thanks for taking the time to write a review. We are glad to hear your Korky is working well for you. If you have additional questions, our customer service team is here and happy to help. Please dial 262-763-2434 or email us at sales@lavelle.com. We are available Monday through Friday, 7:30AM to 5:00 PM CST.

Dec 29, 2025
Walmart customer
Top Reviewer
Item details
Size: 2"
5 out of 5 stars review

Verified Purchase

Simple Fix!

After all these years dealing with a running toilet, I can't believe that all I needed to do was replace this little thing! Had a friend tell me that I would have to replace the whole works inside the tank. I called a plumber who said he would do it for $100! So, I went online and researched it. Low and behold, a Youtube guy said that all I needed was a flapper. Installed it myself in 2 minutes.

Helpful?73T5B38WA15538470903
reply from Korky Toilet Genius

Thanks for taking the time to write a review. We are glad to hear your Korky is working well for you. If you have additional questions, our customer service team is here and happy to help. Please dial 262-763-2434 or email us at sales@lavelle.com. We are available Monday through Friday, 7:30AM to 5:00 PM CST.

Apr 9, 2026
Danny
Top Reviewer
Item details
Size: 2"
5 out of 5 stars review

Verified Purchase

Perfect fix!!

Korky Ultra Standard 2-inch Universal Rubber Toilet Flapper (100) - it did the job quickly and without having to make any adjustments - I don't want to say it was a life saver - but it was for sure a time saver and money saver as no professional plumber was needed (nor a semi-professional handyperson was needed!). Price was very affordable! The change was a piece of cake - the ease of installation took only a few moments, the fit was perfect providing a proper seal - no more runny toilet!

Helpful?73T5B38WA15538470903