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

4.5 stars out of 457 reviews
(4.5)|
457 ratings

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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Current price is $6.98
Price when purchased online
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Columbus, 43215
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About this item

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Customer ratings & reviews

4.5 out of 5 stars
stars457 ratings143 reviews
How item rating is calculated
  1. 5 stars77% (352)
  2. 4 stars11% (48)
  3. 3 stars5% (21)
  4. 2 stars2% (7)
  5. 1 star6% (29)

Reviews summary

Pros
  • : Made with high-quality craftsmanship.
  • : Offers good quality at a lower cost.
  • : Prevents water leakage with a flexible fit.
  • : Accommodates most standard toilet sizes.
Cons
  • : Fails to retain water due to poor seal or suction.
  • : Directions could be more concise and straightforward for easier setup and adjustment.
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Showing 1-3 of 143 reviews

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.

Nov 25, 2025
Kathleen
Item details
Size: 2"
5 out of 5 stars review

Verified Purchase

Fixed my leaking flapper

Easy to install. Fixed my problem. I had just installed a kit, from a different brand, to replace my toilet tank filler and flapper. The flapper from the brand new kit leaked badly! THIS flapper is just a SIMPLE flapper with no special features except IT DOES NOT LEAK. Get this flapper to save your water bill and your septic from unnecessary water usage!

Helpful?73T5B38WA15538470903
Aug 28, 2025
Tim
Top Reviewer
Item details
Size: 2"
5 out of 5 stars review

Verified Purchase

Great little flapper

I live in a water controlled mobile home park. They set the rate as high as the state will allow so I buy these in bulk so I am never without. Easy peasy swap out once I hear that toilet kick on without flushing I swap it out. It's so easy I've done it at 3 am.

Helpful?73T5B38WA15538470903