Watts Thermostatic Mixing Valves

Series MMV-M1 Thermostatic Mixing Valves maintain and limit mixed hot water to a desired, selectable temperature. The MMV-M1series can be set to any temperature between 80°F and 120°F with flow rates as low as 0.5 gpm and as high as 12 gpm.

Manuals -


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  • 1/2" LFMMVM1-US Lead Free Mixing Valve (Sweat) View Specs

    $85.95 / each

    $248.85 / box
    3 x $82.95

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 1/2" LFMMVM1-UT Lead Free Mixing Valve (Threaded) View Specs

    $85.95 / each

    $248.85 / box
    3 x $82.95

    In Stock! (8 Available) Ships in 24-48 Hrs
  • 3/4" LFMMVM1-US Lead Free Mixing Valve (Sweat) View Specs

    $85.95 / each

    $414.75 / box
    5 x $82.95

    Out of Stock Allow 3-5 Days to Ship Out.
  • 3/4" LFMMVM1-UT Lead Free Mixing Valve (Threaded) View Specs

    $85.95 / each

    $248.85 / box
    3 x $82.95

    In Stock! (5 Available) Ships in 24-48 Hrs
  • 1" LFMMVM1-US Lead Free Mixing Valve (Sweat) View Specs

    $105.95 / each

    $299.85 / box
    3 x $99.95

    In Stock! (5 Available) Ships in 24-48 Hrs
  • 1" LFMMVM1-UT Lead Free Mixing Valve (Threaded) View Specs

    $105.95 / each

    Non-Stock Item Allow 3-5 Days to Ship Out
  • Screen Washer for Watts MMV Mixing Valve View Specs
    • SKU: 1077962
    • Brand: Watts

    $1.95 / each

    $46.25 / box
    25 x $1.85

    Non-Stock Item Allow 7-10 Days to Ship Out
  • Repair Kit for LFMMV 1/2" - 1" View Specs
    • SKU: 0559123
    • Brand: Watts

    $52.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 3/8" LFUSG-B-M2 Under Sink Guardian Thermostatic Mixing Valve (Lead Free) View Specs

    $66.95 / each

    $258.60 / box
    4 x $64.65

    In Stock! (96 Available) Ships in 24-48 Hrs
  • 1/2" WAS Anti-Sweat Valve View Specs
    • SKU: 0215476
    • Brand: Watts

    $74.95 / each

    In Stock! (2 Available) Ships in 24-48 Hrs
  • 3/4" Union Filter Washer View Specs
    • SKU: 1077963
    • Brand: Watts

    $1.79 / each

    Non-Stock Item Allow 7-10 Days to Ship Out