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Korky Ultra Standard 2-Inch Universal Toilet Flapper - Long Lasting Rubber - Easy to Install - Made in USA, 100BP

  • Based on 15,914 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jul 14
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Number of Items: 1


Features

  • TOILET FLAPPER VALVE FITS MOST POPULAR 2 inch toilet brands including, but not limited to: American Standard, Kohler, Mansfield, & TOTO Replaces popular rubber, float-style and rigid frame flappers.
  • MOST UNIVERSAL the High Performance Toilet Flapper is the most universal 2 inch flapper available. Adjusts to fit all tank sizes: 1.28, 1.6, 3.5 and 5 gallon per flush toilets
  • MADE IN USA - Toilet parts flapper is proudly made in America and backed by a 5 year warranty.
  • HIGH QUALITY REPLACEMENT TOILET PARTS: Need to repair or replace toilet parts? Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are universal to fit the majority of toilets. Designed & manufactured in Wisconsin. Flapper made of chlorine resistant rubber
  • QUICKLY FIX running and leaking toilets and eliminate costly water waste.

Description

"The Korky Ultra High Performance Flapper is the most universal 2 inch flapper available. The flapper adjusts to match original toilet settings and eliminates water waste by decreasing the amount of water flushed. Ideal for all standard 2 inch toilets, including: 1.28, 1.6, 3.5 and 5 gallons per flush (gpf). The adjustable flapper has multiple settings to ensure it fits popular 2 inch toilet models. Made of flexible rubber for a tight seal and easy to install, the 100 includes: (1) Adjustable Flapper and (1) Stainless Steel Chain. The 100 toilet flapper fits the following toilet brands, models and tank numbers: Fits Aqua Source: Aqua Project Source (CP-321) | American Standard: Cadet (4029, 4078, 4083, 4053, 4650), Evolution 2 Flowise (4061), Monarch (4003), Mainstream (4061) | Crane: Galaxy (3742) | Gerber: Viper (28-590) | Glacier Bay: WCRS1 | HD Supply: Seasons (564830) | Kohler: Portrait (K-4590), Wellworth (K-4620, K-4512, K-4519) | Seasons: Anchor Point (564830) | Sterling: Riverton (404522), Stinson (402091), Windham (404555) | TOTO: Carusoe (706), and many more!" From the Manufacturer "The Korky Ultra High Performance Flapper is the most universal 2 inch flapper available. The flapper adjusts to match original toilet settings and eliminates water waste by decreasing the amount of water flushed. Ideal for all standard 2 inch toilets, including: 1.28, 1.6, 3.5 and 5 gallons per flush (gpf). The adjustable flapper has multiple settings to ensure it fits popular 2 inch toilet models. Made of flexible rubber for a tight seal and easy to install, the 100 includes: (1) Adjustable Flapper and (1) Stainless Steel Chain. The 100 toilet flapper fits the following toilet brands, models and tank numbers: Fits Aqua Source: Aqua Project Source (CP-321) | American Standard: Cadet (4029, 4078, 4083, 4053, 4650), Evolution 2 Flowise (4061), Monarch (4003), Mainstream (4061) | Crane: Galaxy (3742) | Gerber: Viper (28-590) | Glacier Bay: WCRS1 | HD Supply: Seasons (564830) | Kohler: Portrait (K-4590), Wellworth (K-4620, K-4512, K-4519) | Seasons: Anchor Point (564830) | Sterling: Riverton (404522), Stinson (402091), Windham (404555) | TOTO: Carusoe (706), and many more!"

Manufacturer: ‎Korky


Part Number: ‎100BP


Item Weight: ‎1.4 ounces


Product Dimensions: ‎4 x 7 x 2 inches


Item model number: ‎100BP


Is Discontinued By Manufacturer: ‎No


Size: ‎Small


Color: ‎Red


Style: ‎1 PACK


Finish: ‎Red


Material: ‎Rubber


Pattern: ‎Flapper


Shape: ‎Round


Item Package Quantity: ‎1


Number Of Pieces: ‎1


Included Components: ‎Chain(1) Toilet Flapper, Flapper


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎5 Year Warranty


Date First Available: July 23, 2008


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Fixed My Ghost Flushing Problem Instantly
Number of Items: 1
This Korky Universal Toilet Flapper solved my toilet's ghost flushing problem completely. My toilet would randomly refill throughout the day, and I knew I was wasting water, but I wasn't sure exactly what was causing it. After replacing the old flapper with this one, the issue disappeared immediately. Installation was quick and straightforward, and the flapper fit perfectly without any adjustments. It's been working flawlessly ever since, and my toilet no longer runs or refills on its own. For such an inexpensive part, it saved me from a very annoying problem and potentially higher water bills. If you're dealing with ghost flushing or a toilet that keeps refilling itself, I highly recommend giving this flapper a try. ... show more
Reviewed in the United States on June 19, 2026 by _.EfraiN._

  • Awesome Flappy Thingie
Number of Items: 1
We live in a rental with an older toilet and the bloody flappy thingie was deteriorating....water was running non stop in the tank. We called the landlord a bajillion times which netted a lot of promises and no fix-kind of like long distance boyfriends LMAO. I finally just had my oldest son measure the bloody flappy thingie and looked it up on Amazon...where I found this. I can say with complete confidence and sincerity that his flappy thingie works perfect, is compatible with my older toilet, seals just fine, the tank now fills and then goes silent, and was a snap to put in. Such an easy fix. Worth every penny and solved the near six months of aggravation of waiting for a landlord to fix it. Of course, when we move out this summer, we are putting the old one, currently dried off and kept in a plastic bag under the sink, back in the tank...because I'm petty that way when irritated. ... show more
Reviewed in the United States on April 23, 2026 by Kat

  • Great product
Number of Items: 1
This works great. So easy to install. Works well with my toilet super simple it’s really stable. There’s no drainage. Highly recommend this. As much as someone could recommend a toilet flapper.
Reviewed in the United States on June 5, 2026 by MommyLongLegs

  • Quick, and easy install
Number of Items: 1
Quick, and easy install, stopped the leak, the original lasted near 20 years, this one should outlive me...LOL
Reviewed in the United States on May 4, 2026 by 1 Sweet Ol Bear

  • Fixed toilet with this, easy install, no leaks
Number of Items: 1
Worked for toilet repair. You dial in for different models and makes. Name brand quality.
Reviewed in the United States on April 28, 2026 by DubG

  • works great, not too small.
Number of Items: 1
works great! easy to put on. i was afraid it might be too small for my jacuzzi toilet, , but there is no leaking.
Reviewed in the United States on May 27, 2026 by vintage gardens

  • Works great! Works great!
Number of Items: 1
Works perfectly. So much better than the flapper that I replaced that had a polymer "chain". Very easy to install, perfectly fit with a flapper assembly it was not specifically designed for.
Reviewed in the United States on May 4, 2026 Reviewed in the United States on May 4, 2026 by D. W. Balcom

  • Works Perfectly! Extremely Easy To Install!
Number of Items: 1
Excellent! Worked perfectly! Extremely easy to install. I had a 'temperamental' flapper in a bathroom that I had developed a routine to get it to close properly. I would hold down the lever until the toilet tank was half-empty and release it so the remaining weight of the water in the tank would cause it to seal properly. Always ran the risk of it not sealing and the toilet continuing to fill and running up my water bill. I got this and replaced it in about 45 seconds and it works PERFECTLY! Wish I had done it years ago! ... show more
Reviewed in the United States on April 20, 2026 by James B

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