You may also like
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 THU788-A – Frequently Asked Questions
1) Will the TOTO THU788-A flush valve fit any TOTO toilet?
No. TOTO flush valves are model-specific, and THU788-A is one particular assembly out of many TOTO THU part numbers. Match the THU number called out for your tank model rather than assuming it fits because the brand matches.
2) What is the TOTO THU788-A?
The THU788-A is a TOTO flush valve assembly, the tank-side valve that releases water into the toilet bowl when the trip lever is pulled. It is a toilet repair part, ordered by TOTO part number THU788-A.
3) Is the THU788-A a complete valve assembly or just the seal?
It is the complete flush valve assembly, not a standalone flapper or seal kit. If the only problem is a bowl that runs because the seal has hardened, a seal alone may fix it; if the valve body itself is cracked or the overflow tube is damaged, the full THU788-A assembly is what is called for.
4) I manage apartments with TOTO toilets. Should I stock flush valve assemblies as a repair part?
For a property with TOTO fixtures, the flush valve is one of the two parts that fail over time (the other being the fill valve), and a failed flush valve seal is the usual cause of a continuously running toilet and a high water bill. Stocking the assembly that matches your tank models, THU788-A where that is the specified part, keeps a running toilet a same-day fix rather than a fixture swap.
5) Do I need tools or extra parts to install the THU788-A flush valve?
Replacing a flush valve assembly means shutting off the supply, draining the tank, and lifting the tank off the bowl to reach the valve nut, so plan on a new tank-to-bowl gasket and bolt set if the existing ones are corroded. The THU788-A covers the valve assembly itself.
How fast can I get the TOTO THU788-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 THU788-A come with a warranty?
Absolutely. The TOTO THU788-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 THU788-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 THU788-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.