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
Browse by Type
3 Series Cartridges

1213 Cartridge
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
Cartridge:
The 1213 cartridge that come in 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.