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Manufacturer Resources
Product Specs
- Body Finish:
- Rough Bronze
- Body Material:
- Lead Free Brass
- Capacity:
- 2.25 GPM
- Cold Inlet Temperature Range:
- 39 to 80 degree F
- Cold Water Bypass:
- No
- Cold Water Inlet Connection Size:
- 3/8 IN
- Cold Water Inlet Connection Type:
- Compression Joint
- Country Of Origin:
- United States
- Factory Set Temperature:
- 105°F
- Flow Rate:
- 0.25 to 2.25 GPM
- Hot Inlet Temperature Range:
- 120 to 180 degree F
- Hot Water Inlet Connection Size:
- 3/8 IN
- Hot Water Inlet Connection Type:
- Compression Joint
- Maximum Pressure Differential:
- 25 Percent
- Maximum Working Pressure:
- 150
- Minimum Differential Temperature:
- 5°F
- Minimum Static Pressure:
- 30 PSI
- Outlet Connection Size:
- 3/8 IN; 10 MM
- Outlet Connection Type:
- Compression Joint
- Outlet Temperature Accuracy:
- +/- 7 degree F
- Series:
- LFUSG-B
- Temperature Adjustment Range:
- 80 to 120 degree F
- Wifienabled:
- No
- Department:
- Plumbing
- Product Group:
- Plumbing
- Product Subgroup:
- Valves
- Product Type:
- Mixing Valve
Watts 204143 – Frequently Asked Questions
1) What size and type of connections does the Watts 0204143 mixing valve use?
All three ports on the Watts LFUSG-B 0204143 are 3/8 inch compression: hot inlet, cold inlet, and the mixed outlet (3/8 inch, 10 mm). That is the standard lavatory supply-stop size, so it ties straight into 3/8 inch supply risers under a sink without adapters or soldering.
2) What temperature does the Watts 0204143 come set at, and how far can I adjust it?
It leaves the factory set at 105 degrees F and adjusts from 80 to 120 degrees F. Outlet accuracy is plus or minus 7 degrees F, so a setting of 110 can land anywhere from 103 to 117. If your facility has a hard maximum outlet temperature on the spec, set it and then verify at the fixture with a thermometer.
3) Will a 3/8 inch point-of-use thermostatic mixing valve keep up with my lavatory faucet?
The LFUSG-B is rated 2.25 GPM, and it regulates down to 0.25 GPM, so it covers metered, sensor, and standard lavatory faucets, which are typically well under that. It is a single-fixture valve, not a master valve for a whole branch. If you are tempering a group of fixtures or a shower, you want a larger master mixing valve instead.
4) Does this Watts mixing valve shut off if the cold water fails?
No. The 0204143 is listed with no cold water bypass, meaning it does not pass raw hot through on a cold-supply loss, but it also is not a scald-shutoff device. If your project specifies a valve that positively shuts down on cold failure, this point-of-use model is not it.
5) Is the Watts 0204143 lead free for potable water?
The body is lead free brass with a rough bronze finish, which is what you need for potable water service under current lead-free plumbing rules. It is made in the United States, which matters if your job carries a domestic-content requirement.
6) Can I install this under-sink mixing valve where it will be visible?
The finish is rough bronze, an unpolished utility finish meant for concealed installation under a lavatory or inside a cabinet. It is not a decorative trim piece, so if the valve will be exposed in a finished space, plan on a cover or an access panel.
How fast can I get the Watts 204143 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 Watts 204143 come with a warranty?
Absolutely. The Watts 204143 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 Watts 204143?
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