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FLUSH VALVE ASSEMBLY
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- flush valve
- Parts and Accessories Type:
- Flush Valve
- Department:
- Plumbing
- Application:
- Toilet
TOTO THU785-A – Frequently Asked Questions
1) What is the TOTO THU785-A part?
THU785-A is a TOTO flush valve assembly, the dual-flush valve tower for a two-piece toilet tank. It is a toilet repair part, not a complete toilet or tank, so it goes into an existing tank as the valve that releases water to the bowl.
2) How do I make sure I order the correct TOTO flush valve tower for my tank?
Order by the TOTO part number stamped in your service documentation and match it to THU785-A. TOTO dual-flush towers are model specific, and the wrong tower will not seat or seal in the tank even when it looks similar. If the number for your tank is a different THU part, THU785-A is not the one to buy.
3) Is the TOTO THU785-A a dual flush valve or a single flush valve?
It is the dual-flush valve tower, meaning the tank it serves has a two-button or two-mode actuator giving a reduced flush and a full flush. If your tank uses a single-flush tower with one trip lever linkage, this assembly is the wrong replacement.
4) Does the THU785-A come with a new fill valve or tank-to-bowl gasket?
What ships is the flush valve tower assembly itself. A fill valve, supply line, tank-to-bowl bolts and gasket are separate items, so if you are rebuilding the whole tank plan on ordering those alongside it.
5) Can a property manager stock one TOTO tower for every dual-flush two-piece toilet in the building?
No. TOTO tower assemblies are tied to specific tank models, so a mixed fleet needs the tower that matches each tank rather than one universal part. THU785-A covers the tanks that call out that number. If you are standardizing, record the tank model at each fixture first, then stock towers by model.
How fast can I get the TOTO THU785-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 THU785-A come with a warranty?
Absolutely. The TOTO THU785-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 THU785-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 THU785-A from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.