Take showering beyond the ordinary with this 1/2-inch MasterShower thermostatic valve. When paired with compatible trim, this valve delivers a high-temperature limit stop for added safety and a high-flow rate for precise, consistent temperature control.

Dimensions and Measurements

  • MasterShower® thermostatic valve features an innovative shuttle design that delivers precise, consistent temperature control and a generous flow rate.
  • Thermostatic valve allows bather to set and maintain precise temperature.
  • Factory calibrated comfort setting at 104 degrees Fahrenheit.
  • High-temperature safety stop ensures water temperature stays below 120 degrees Fahrenheit.
  • Patented K-joint installation ensures consistent trim appearance, regardless of variability in valve rough-in (included with trim).
  • 10.9 gpm (gallons per minute) flow rate is ideal for multiple outlet installations or rapid bath filling.
  • 1/2-inch inlet.
  • Requires thermostatic valve trim (sold separately).
  • Requires a separate K-2974-K volume control valve for each bath and/or shower outlet (sold separately).


  • Brass construction.


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