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C100 LID ASSEMBLY ROUND
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- lid round
- Parts and Accessories Type:
- Tank Lid
- Department:
- Plumbing
- Application:
- Toilet
TOTO THU9803#12 – Frequently Asked Questions
1) What is the Toto THU9803#12 part, and what does it include?
THU9803#12 is a replacement round lid assembly for the Toto C100 washlet seat. It is the lid portion only, ordered as a service part when the original lid is cracked, broken, or missing, not a complete seat. The #12 suffix is Toto's Sedona Beige color code, so it matches a Sedona Beige C100 rather than a cotton white one.
2) Will the THU9803#12 lid fit an elongated Toto C100 washlet?
No. This lid assembly is the round version. An elongated C100 seat needs the elongated lid, and the round lid will not seat correctly on it. Check the shape of the seat body before ordering; round and elongated are not interchangeable on washlets.
3) Does the Toto THU9803 lid assembly fit other washlet models like the S300 or K300?
It is a C100 part. Toto lids are model-specific because the hinge geometry and lid profile change between washlet families, so a THU9803 lid should only be ordered for a round C100. For another model, order the lid assembly listed under that model's own service part number.
4) I manage a building with several Toto washlets. Can I stock one lid part number for all of them?
Not with a single number. Lids split by both bowl shape (round versus elongated) and color code, so a beige round C100 takes THU9803#12 while a white or elongated unit takes a different part. If you are standardizing, record the model, shape, and color suffix stamped on each seat and stock the matching lid for each combination.
How fast can I get the TOTO THU9803#12 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 THU9803#12 come with a warranty?
Absolutely. The TOTO THU9803#12 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 THU9803#12?
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 THU9803#12 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.