Kohler MasterShower® 3/4 in. NPT Thermostatic Valve


  • 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 set at 104° Fahrenheit
  • High-temperature safety stop ensures that water temperature stays below 120° Fahrenheit
  • Patented K-joint installation ensures consistent trim appearance regardless of variability in valve rough-in (included with trim)
  • Flow rate: 17.2 gpm
  • Requires thermostatic valve trim (sold separately)
  • Requires a separate Kohler® K-2974-K volume control valve for each bath and/or shower outlet (sold separately)

Valve Size:

3/4 in
ADA Compliant No
Brand Model Compatibility K-2977-K 3/4 in Volume Control Valve
Cartridge Type Thermostatic
Collection MasterShower®
End Connection 2 NPT
End Connection 3 NPT
End Connections NPT
Flow Rate 17.2 gpm
Height 4-7/16 in
IAPMO Listed No
Number of Handles Single Handle
Type K2975-KS-NA
Valve Type Tub & Shower Thermostatic Valve
Width 4-13/16 in