Toto RUBBER WASHER KIT FOR COM...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$48.29
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Toto RUBBER WASHER KIT FOR COMMERCI THU456R-A

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Model: THU456R-A

In Stock (leaves warehouse same day if ordered before 3pm ET)

$48.29
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FLUSH VALVE TOWER FOR 2PC

Manufacturer Resources

Product Specs

Product Group:
Washroom/Bath Accessories
Product Subgroup:
Parts and Accessories
Product Type:
flush valve tower
Parts and Accessories Type:
Flush Valve
Department:
Plumbing
Application:
Toilet

TOTO THU456R-A – Frequently Asked Questions

1) What is the TOTO THU456R-A rubber washer kit used for?
The THU456R-A is a rubber washer kit for the flush valve tower in a TOTO two-piece toilet. It is the gasket set that seals the flush valve assembly inside the tank, so it is what you order when a two-piece TOTO is seeping from the valve or losing water between the tank and bowl rather than leaking at the fill valve.
2) Will the TOTO THU456R-A washer kit fit a one-piece toilet?
No. The THU456R-A is specified for the flush valve tower on TOTO two-piece toilets. One-piece TOTO models use a different tank and valve arrangement, so you need the repair kit called out for that specific one-piece model instead.
3) My TOTO toilet keeps running between flushes. Is this the part that fixes it?
Often, yes, on a two-piece TOTO. A phantom refill or a constant trickle into the bowl usually means the flush valve seal is no longer seating, and the THU456R-A replaces those rubber washers on the flush valve tower. If the water is instead running into the overflow tube, the problem is the fill valve and this kit will not address it.
4) Is the THU456R-A a complete flush valve or just the seals?
Just the rubber sealing components. The THU456R-A is a washer kit for the flush valve tower, not a whole tower assembly or a complete flush valve. If the tower body itself is cracked or the canister is damaged, replacing the washers alone will not stop the leak.
5) What TOTO part number should I give my plumber for the two-piece flush valve washers?
THU456R-A is the TOTO manufacturer part number to quote. It is a single-part order with no finish, size, or handing options to specify, so the number alone identifies the kit.
6) Can property managers stock the THU456R-A as a standard repair item across a building of TOTO two-piece toilets?
Yes, provided the units are TOTO two-piece models using the flush valve tower this kit serves. Because it is a single part number with one configuration, it stocks cleanly on a maintenance cart, and a tank-side seal change is a shutoff-and-drain job rather than a fixture pull.
How fast can I get the TOTO THU456R-A delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the TOTO THU456R-A come with a warranty?
Absolutely. The TOTO THU456R-A is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the TOTO THU456R-A?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the TOTO THU456R-A from ZenSupply?
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