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SMA CARTRIDGE,THERMOSTATIC VLV
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- sma vlv
- Parts and Accessories Type:
- Valve Cartridge
- Department:
- Plumbing
- Application:
- Faucet
TOTO THP3121 – Frequently Asked Questions
1) What is TOTO THP3121 and what does it do in a faucet?
THP3121 is a TOTO thermostatic valve cartridge with a temperature limit function, used as a service part in a faucet. The cartridge is what mixes hot and cold and holds the outlet temperature steady, and the temperature limit portion caps how hot the water can be delivered. If a faucet has started running cold, drifting in temperature, or will no longer hold its set limit, the cartridge is the part replaced rather than the whole fitting.
2) What part number do I order for a TOTO TLT10 thermostatic temperature limit cartridge?
Order TOTO THP3121. That is the manufacturer part number for the thermostatic temperature limit cartridge referenced as TLT10, and it is sold as a single cartridge with no finish or size choice to specify.
3) Will the TOTO THP3121 cartridge fit any thermostatic faucet, or only certain TOTO models?
Treat it as a TOTO-specific cartridge. Thermostatic cartridges are keyed to the valve body they were designed for, and THP3121 is a TOTO service part, so it is not a universal replacement for another brand's thermostatic valve. Match the cartridge to the TOTO faucet model you are servicing before you order.
4) Is TOTO THP3121 a complete faucet or just a repair part?
It is a repair part only, the thermostatic cartridge that goes inside a TOTO faucet. No spout, handle, trim plate, or supply connections come with it. If the body of the faucet is damaged or you are roughing in new work, you need the faucet or valve body itself, not this cartridge.
How fast can I get the TOTO THP3121 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 THP3121 come with a warranty?
Absolutely. The TOTO THP3121 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 THP3121?
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 THP3121 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.