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FLUSH VALVE ASM - DUAL FLUSH
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- flush valve asm
- Parts and Accessories Type:
- Flush Valve
- Department:
- Plumbing
- Application:
- Toilet
TOTO THU435 – Frequently Asked Questions
1) Is the TOTO THU435 flush valve a replacement part or a complete toilet?
Replacement part only. The THU435 is the dual flush valve assembly that goes inside the tank, not a tank, bowl, or complete toilet. If you are repairing a TOTO dual-flush toilet that will not hold water in the tank or will not release a full flush, this is the internal component you swap out.
2) Will the THU435 work in a single-flush TOTO toilet?
No. The THU435 is built as a dual flush valve assembly, meaning it is matched to TOTO tanks with a two-volume flush actuator. A single-flush tank uses a different valve and a different trip mechanism. Match the TOTO part number called out for your tank model rather than fitting a dual-flush valve to a single-flush tank.
3) Does the THU435 include the fill valve as well?
The THU435 is the flush valve assembly, the discharge side of the tank. The fill valve, the part that refills the tank after a flush, is a separate TOTO part. If your complaint is a tank that runs constantly or refills slowly, that points at the fill valve rather than at this flush valve.
4) For a property manager stocking TOTO dual-flush repairs, what does the THU435 cover?
It covers the flush valve side of a TOTO dual-flush tank, the assembly that seals the tank outlet and releases either the reduced or the full flush volume. For a building standardized on TOTO dual-flush toilets, this is the part that gets replaced when a fixture starts leaking through into the bowl or stops giving a full flush. Confirm the THU435 is the valve specified for the tank models on your floors before you stock it in depth.
5) Is the TOTO THU435 sold in more than one finish or size?
One configuration only, TOTO part THU435. There are no finish or size choices to specify. Because it is a tank internal, finish is not a factor, you order the single part number and it is the same piece in every application it fits.
How fast can I get the TOTO THU435 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 THU435 come with a warranty?
Absolutely. The TOTO THU435 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 THU435?
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 THU435 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.