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Size: 3/8″ (10mm) Lead Free* Under Sink Guardian Thermostatic Mixing Valves

Series LFUSG-B Lead Free* Under Sink Guardian Thermostatic Mixing Valves are used in commercial and residential under-the-sink installations to maintain hot water at a desired temperature to avoid the risk of accidental scalding. It uses a thermostat to control hot and cold water temperature, and dual check valves protect against cross flow of hot water to cold and cold water to hot water piping. An integral strainer with 40 mesh screen filters out debris. Superior flow characteristics provide accurate temperature control with low pressure drop. Available with compression and Quick-Connect fittings.


  • Lead Free* brass body construction
  • A tamper resistant locking nut prevents accidental misadjustment
  • Dual check valves prevent against cross flow of hot and cold water
  • Installs easily between the stop valves and faucet

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Select options below to identify the UPC, Order Code, and Repair Kit for a specific LFUSG-B

Approval Information

For approval information, please refer to the products specification sheet. For any other information on product certification and documentation information, please visit our certification partner websites: