Shopping Cart

Your cart is empty.

Your cart is empty.

Compatible with Toto Flush Valve Silicone Seal Gasket, Replacement for THU440-A, THU451, 10A-A

Free shipping on orders over $29.99

$9.99

$ 4 .99 $4.99

In Stock

About this item

  • Product Introduction: Toilet Parts and Repair Silicone Seal, Flush Valve Silicone Seal THU440-A, Replace old, leaky and inefficient toilet flapper to minimize expensive water waste.
  • THU451,10A-A: 81 mm or 54 mm ID
  • 3 & 3/16" OD, 2 & 1/1/8" Silicone Seals
  • Improve toilet flushing : The problem of gaskets having bubbles, not sealing properly, and causing tiny, slow leaks can be easily solved by using this gasket.
  • Easy to Install: Compatible with Toto flush valve seals that wear out over time. No special tools or expensive plumber services required—repairing this flush valve seal takes just minutes, saving you time and money.



Product Description

toilet flush valve

Package contains only 1 seal.Compatible with Toto Flush Valve Silicone Seal THU440-A THU451,10A-A, Toilet Parts and Repair Silicone Seal, Flush Valve Silicone Seal, Silicone Flush Valve Seal Outer Diameter 80 mm Inner Diameter 54 mm Thickness 3 mm Outer Diameter 3.125 Inner Diameter 2.125 Inch

thu451
toto toilet gasket replacement

71 six pack
Reviewed in the United States on September 27, 2024
This gasket should be around $4.95 buyer beware....
BossLady
Reviewed in the United States on December 7, 2024
This worked like a charm, if your toilet is running or won't stay full and there is a constant slow leak you may need a new flush valve. My Toto started running and would not stay full when flushed after just 1 year its my guess that my flush valve could have had a defect or it needed replacing more than a year old, nevertheless this valve worked immediately.
Ken S. Tsuda
Reviewed in the United States on December 16, 2024
I decided to try a wild guess fix on my leaky toilet. I was looking at replacing the entire flush system, but decided to gamble on the gasket being the problem. I'm glad I did. Replacing just the gasket fixed the problem and the toilet is working without leaks.
Josh D.
Reviewed in the United States on November 12, 2024
Although it was not listed as supporting the THU407, the dimensions seemed close. So I ordered and used it with the THU826–A drain valve. it seems to hold water in the tank just fine.
Paul Recklau
Reviewed in the United States on October 9, 2024
This is a silicone flush valve seal that appears identical to the OEM. It is easy to install and seals perfectly. Original seals will develop bubbles on the surfaces and toilet will leak continuously without you knowing it. This seal will resolve that issue, and reduced my water bill by about $20/month.
Recommended Products

$25.90

$ 12 .99 $12.99

4.3
Select Option

$40.00

$ 19 .99 $19.99

4.3
Select Option