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Toto THU500S Toilet Flapper

chat iconWHAT OUR CUSTOMERS SAY…

“I had a specific problem finding the right part for my toilet repair, and the gentlemen at Noel's not only had the part in stock, but took the time to explain that I was looking for the wrong part for my problem. My HERO! Thank you! ”
-Teresa M.
11/11/2020

$21.47

 

The TOTO THU500S is a genuine 3-inch universal replacement toilet flapper to fix leaking, running, or poorly flushing toilets. It features an adjustable polypropylene frame with a rubber sealing surface, allowing you to rotate a numbered dial on the flapper to match the exact water-drop requirements of your specific TOTO toilet model.

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: 33312 Category: Tag:

Fix your running toilet with the ultimate genuine replacement part. The TOTO THU500S 3-Inch Universal Toilet Tank Flapper is the ideal choice for homeowners and plumbing professionals looking to eliminate leaks, stop ghost flushing, and restore original flushing performance.

 

THU500S

 

  • Replacement flapper for 3″ flush valves
  • Replaces THU138S, THU175S, THU331S, THU140S, THU299S, THU253S, THU277S, THU347S, THU275S, THU332S, THU369S, and THU499S
  • Red flapper

 

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended 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.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“Sent Noel’s plumbing and image of what was needed, not being able to find it. They had it sent to me within a week and fitment was perfect. 👍 ”
-Lorenzo H.
03/12/2026