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MASTERSHOWER
®
Features
Forged brass valve body
•
Single-handle temperature control
•
High-flow valving
•
High-temperature limit setting for added safety
•
Temperature-balancing mechanism
•
Scald hazard prevention
•
Integral stops
•
Crossflow prevention
•
3/4″ NPT connections
•
Filter screens
•
Dual outlet (Bath – bottom, shower – top)
•
Less volume control
•
Codes/Standards Applicable
Specified model meets or exceeds the following:
ASSE 1016
•
ASME A112.18.1/CSA B125.1
•
Specified Model
3/4″ THERMOSTATIC MIXER
Colors/Finishes
NA: None applicable
•
Accessories
NA: None applicable
•
K-2975-KS
Model Description Colors/Finishes
K-2975-KS 3/4″ thermostatic mixer - less volume control ❑ NA
Required Accessories
K-2974-K 1/2″ volume control valve - for use on bath and shower outlets ❑ NA
K-2977-K 3/4″ volume control valve - for use on bath and shower outlets ❑ NA
Optional Accessories
K-9663 Twin ell - for use with diverter bath spouts only ❑ NA
Product Specification
The thermostatic mixer less volume control shall have a forged brass valve body. Product shall feature single-handle
temperature control, high-flow valving, high-temperature limit stop for added safety, and temperature-balancing mechanism.
Product shall feature integral stops, crossflow prevention, filter screens, and scald hazard prevention. Product shall have 3/4″
NPT connections. Product shall have two outlets, the bottom one for bath and the top one for shower. The thermostatic mixer
shall be Kohler Model K-2975-KS-NA and the required volume control valve shall be K-_____-K-NA.
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1145568-4-
USA/Canada: 1-800-4KOHLER
B
(1-800-456-4537)
www.kohler.com
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MASTERSHOWER
®
Installation Notes
Install this product according to the installation guide.
The K-2975-KS thermostatic mixer valve requires a separate
volume control valve, K-2974-K or K-2977-K, for each bath
and/or shower outlet.
For bath-only or shower-only installations, an NPT plug must
be installed in any unused outlet.
The lower port of the thermostatic mixer is intended for use
with a bath spout only. If a bath spout is not used with this
product, the lower port must be plugged.
For installations with a diverter spout, a twin ell, K-9663, is
required between the valve and the spout. It is acceptable for
the supply to the K-9663 twin ell to run from the top or bottom
port through the volume control valve if the remaining unused
port is plugged.
3/4" NPT
Shower Outlet
3/4" NPT
Hot Inlet
2-1/16"
(52 mm)
1-7/16"
(37 mm)
1-3/4"
(44 mm)
4-13/16" (122 mm)
2-1/16" (52 mm)
3/4" NPT
Bath Outlet
2-3/8"
(60 mm)
Stop
3/4" NPT
Cold Inlet
4-7/16"
(113 mm)
1-3/16"
(30 mm)
1/2"
(13 mm)
3-3/4" (95 mm)
2-7/16"
(62 mm)
3-1/2" (89 mm)
4-5/8" (117 mm)
Max
Finished
Wall
Min
Finished
Wall
Product Diagram
MASTERSHOWER®3/4″ THERMOSTATIC MIXER
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1145568-4-
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