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Flapper for Toto Power Gravity THU140S

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“Outstanding fast delivery on two pieces of an ancient Wolverine bath stem for Kohler - from the early 40s I think. The new one has a different body design, but it screwed directly into the old hot/cold tree and was the exact 6" length. Forty eight hours after installation now, and all remains fine. Also, kudos to the people who set up the website and ordering process. Great work - clear photos and info ! PS: I'm not an employee or family...lol. I retired from electrical wholesaling here outside Chicago and I appreciate a good job. ”
-JM C.
07/31/2026

$19.47

 

The Fits TOTO 3 inch Flapper by Korky features an oversized sealing surface to fit large 3 inch TOTO flush valves. The exclusive longest lasting blue rubber resists chlorine, bacteria, city water treatment, hard water, and well water. Replacement for TOTO flapper model THU140S. This type of toilet flapper is made of flexible rubber for a tight seal and easy to install, the 2022 includes: (1) Large 3 inch Flapper and (1) Stainless Steel Chain. Fits the following models:

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, asknoel@noelsplumbingsupply.com, or via the text widget on this screen.

SKU: 92022BP Category: Tags: ,

Is a worn-out flapper causing your toilet to hiss or continuously run? The TOTO THU140S Replacement Toilet Flapper provides a secure, watertight seal that stops phantom flushes and lowers your monthly water bills. Specifically engineered for TOTO Power Gravity toilets, this premium blue rubber flapper features an oversized sealing surface to perfectly fit large 3-inch flush valves.

 

THU140S

 

  • Replaces TOTO Toilet Flapper model THU140S
  • Easy to install, the Toilet Flapper is made of flexible rubber for a tight seal
  • Exclusive longest lasting blue rubber resists chlorine
  • Made in the USA

 

Fits TOTO Toilet Models:

 

CST854, CST864, CST866, CST884 and CST924154F.

Please note: Toilet flapper does not fit the following TOTO models: CST853, CST853E, CST853S, CST863, CST854E, CST854S, CST863E, and CST864E.

Common questions about this product

Will this item replace the original OEM part? chevron-icon

Yes, this aftermarket part will replace your OEM part. 

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

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“I just wanted to thank you for your incredible service! I ordered Sterling Chrome Plate Handles on Monday late afternoon and they arrived today, Thursday early afternoon. They are exactly what we needed and are now installed and working perfectly. You are the BEST!!! ”
-Margaret Z.
10/20/2022