Moen M-CORE 3 Port Valves
Two inlets and one outlet
Use for Shower Only systems or pair with a transfer valve to create a multiple showering device system
Moen M-CORE 4 Port Valves
Two inlets and two outlets
Use for Tub/Shower systems or pair with a transfer valve to create a multiple showering device system
Moen M-CORE Transfer Valves
One inlet and three outlets
Pair with a mixing valve to create two or three showering device systems
Moen M-CORE With Integrated Transfer Valve
Two mixing valve inlets and three transfer valve outlets
A mixing and transfer valve combined to create two or three showering device systems
M-CORE Valves
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M-CORE Cartridges

M-CORE 2-Series & 3-Series Cartridges
Adaptor with Check Valves:
Prevents cross flow of water between hot and cold water lines
Pressure Balance Puck:
Balances incoming hot and cold water pressure to compensate for fluctuations in the home’s water flow, keeping shower temperatures constant and comfortable
Cartridges:
2-Series (1212): The 1212 cartridge that comes with the M-CORE 2-Series trim provides water temperature control
3-Series (1213): The 1213 cartridge that comes with M-CORE 3 Series trim provides water temperature and volume control

3 Port Valve Installation
For 3-Port Valves, flip Adapter with Check Valves (180 degrees) so wing is at top.

4 Port Valve Installation
The three components of the mixing valve cartridge ship assembled and ready for install into a 4-port mixing valve.