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Under Sink Guardian Thermostatic Mixing Valves, Bronze


3/8 in. (10mm)


Series USG-B Under Sink Guardian Thermostatic Mixing Valves are used in commercial and residential applications to mix hot and cold water in under-the-sink installations to minimize the risk of accidental scalding. It consists of a bronze body construction with 3/8 in. male compression connections and quick-connect, check valves, tamper resistant locking nut and integral strainer with 40 mesh stainless steel screens to filter out debris. Series USG-B uses a thermostat to control hot and cold water temperature, and dual check valves to protect against cross flow. It provides superior flow rate (between .5 and 2.25 gpm), accurate temperature control, and low pressure drop. It is suitable for under the counter installations where the water delivered to the fixtures is intended for washing. Satin-chrome finish (-SC) models available. ASSE 1070, CUPC listed.

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Disclaimer: Watts product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

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Additional Information

Danger – Scalding Lurks!

Every year, thousands of people suffer serious thermal shock or scalding injuries in their bathtubs, sinks and showers.

Click here for informative resources to help you protect against these dangers.

Learn About

Thermostatic Mixing Valves

Every year thousands suffer injuries as a result of hot water scalding and thermal shock injuries. Thermostatic mixing valves protect against these dangers.

To learn more about thermostatic mixing valves and how they work, click here.