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PISTON ASSY (1.6/1.28 GPF)
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- piston assy
- Department:
- Plumbing
TOTO TH323V103R – Frequently Asked Questions
1) What flush volumes does the TOTO TH323V103R piston valve assembly work with?
The TH323V103R piston assembly is the 1.6/1.28 GPF version, so it suits TOTO flush valves set up for a 1.6 gallon or 1.28 gallon per flush discharge. If the valve you are rebuilding is a high-efficiency 1.0 GPF or a urinal-rate valve, this is not the matching piston.
2) Is TH323V103R a repair part or a complete flush valve?
It is a repair part, not a whole valve. The TH323V103R is the internal piston assembly that goes inside a TOTO manual flush valve. You reuse the existing valve body, cover, and supply; the piston is the wear item that gets replaced when the valve runs on, flushes short, or will not shut off.
3) My TOTO flushometer keeps running after the flush. Will this piston fix it?
A valve that will not shut off is the classic symptom of a worn or fouled piston, and the TH323V103R is the piston assembly TOTO supplies for its 1.6/1.28 GPF manual flush valves. Replacing it restores the seal that ends the flush cycle. Confirm your valve is a 1.6 or 1.28 GPF model before ordering, since the piston is volume specific.
4) How do I order the right TOTO piston assembly for a building full of flushometers?
Order by the TOTO part number and the flush rate. TH323V103R covers the 1.6/1.28 GPF manual flush valves, so for a facility standardized on 1.28 GPF closets this is the single piston to stock for the rebuild kit shelf. Mixed buildings with 1.0 GPF or urinal valves need a different piston for those fixtures.
5) Does the TH323V103R come in different finishes?
No. It is an internal piston assembly that sits inside the valve body, so there is nothing to finish. TH323V103R is the only version offered, and nothing about it is visible once the valve cover is back on.
How fast can I get the TOTO TH323V103R 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 TH323V103R come with a warranty?
Absolutely. The TOTO TH323V103R 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 TH323V103R?
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 TH323V103R 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.