Model # 3040BP

Internet # 202020358

Cadet 3 in. Toilet Tank Flapper

This item has been discontinued.
The Home Depot no longer carries this specific product.

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Product Overview

The Fits Cadet 3 in. Toilet Tank Flapper replaces American Standard Cadet 3 in. flapper: 738920-0070P and the Pegasus Colonnade flapper. Featuring an oversized design, the exclusive longest lasting red rubber resist chlorine, bacteria, city water treatment, hard water, and well water. The Cadet Flapper works with the following American Standard Cadet 3 toilet models: 2403, 2568, 2907, 4000, 4007, 4019, 4021, 4027, and 4202.

  • Replaces American standard cadet 3 in. flapper: 738920-0070P and pegasus colonnade flapper
  • Exclusive longest lasting red rubber resists chlorine
  • 5 year warranty
  • Includes: (1) cadet 3 flapper and (1) stainless steel chain

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 


Chain Included 
Corrosion Resistant 
Plumbing Part Type 
Toilet Flapper 

Warranty / Certifications

Manufacturer Warranty 
5 years 

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Customer Questions & Answers

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Customer Questions & Answers

Cadet 3 in. Toilet Tank Flapper
Cadet 3 in. Toilet Tank Flapper

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1 answer

what replace korky flapper model 3040

This question is from Cadet 3 in. Toilet Tank Flapper
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April 17, 2016
need toilet flapper for americaN STANDARD MODEL 4021
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Answer (1)

April 18, 2016
Great question! We recommend using the 3060CM Korky® 3" Adjustable Flapper. It can be found online and in stores. Please refer to the Home Depot number 294785. If you have any other questions, please contact our customer service team by dialing 1-800-528-3553. Thanks for choosing Korky, you are the best!
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Customer Reviews

Rated 4.2 out of 5 by 6 reviewers.
Rated 5.0 out of 5.0 by Korky 3050GK flapper fits my 2005 Toto Drake ST743S perfectly, even though it's not listed on Korky's package. The flapper on my 2005 Toto "Drake" (model # ST743S) failed after 9 years so I took the old flapper to Home Depot. The Korky 3050GK flapper looked identical but the packaging did not mention Toto. It only said that it fit American Standard Cadet and Pegasus Colonnade. I took a chance anyway and brought it home. It fit perfectly and has been working perfectly for months so I thought I'd write this review in case it helps others find a replacement flapper for their Toto Drake. September 30, 2014
Rated 5.0 out of 5.0 by Replacement toilet tank flapper; Cadet 3 American Standard Exact fit for my American Standard Cadet 3 series toilet. Also made better that original part, materials and fit. January 13, 2015
Rated 3.0 out of 5.0 by Hard to install The replacement for the 3" flapper is hard to find. This one works, but is not the quality of the original. Original hard to remove without breaking the pipe. Once it was off the new one went on O.K. Not as good quality as Korky ususally makes. November 4, 2014
Rated 3.0 out of 5.0 by It didn't fit Universal no fit problem. I just replaced the entire flush valve instead. September 30, 2014
Rated 5.0 out of 5.0 by works fine now Easy to install and toilet stopped leaking under the flapper like it had been with the previous generic flapper. July 23, 2014
Rated 4.0 out of 5.0 by fits perfect easy to instal, fits and work, little to expensive for a piece of rubber March 4, 2014
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