Single Handle Shower: M-Core Valve
In order to repair or service your shower system, you will need to determine which type of rough-in valve, M-Core Series and interior handle mechanism your shower system has. Follow the steps and use the charts below: Example Shower Rough-in Valve: 3 Port , M-Core Series: 2, Handle Mechanism: Direct Connect
We recommend you make note of this information in your records for future maintenance of your M-Core product.
| Step 1: Which type of Shower Rough-in Valve do you have? |
| Shower Only: 3 Port Rough-in valve | Tub and Shower: 4 Port Rough-in valve |
| Step 2: Which M-Core Series of cartridge and trim do you have? |
Can you adjust the volume or force of water that comes out of your shower system?
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Yes, I have volume control This is an M-Core 3 Series- A 3 Series M-Core handle rotates to adjust the water temperature and tilts up and down to adjust the force or volume exiting the showerhead or tub spout. |
Hot and Cold Indicators on a 3 Series Cartridge 1213 |
No, I cannot adjust the flow This is an M-Core 2 Series- A 2 Series M-Core handle rotates only to adjust the water temperature, the system only provides one level of water pressure |
Hot and Cold Indicators on a 2 Series Cartridge 1212 |
| If your information does not seem to match the M-Core Series details in Step 2, you may have one of the following valves |
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| Step 3: Which Style of Handle Mechanism do you have? (This information will be necessary for cartridge installation) |
- Caution: The main water supply to the Shower must be turned off to remove this handle.
- Removing the Handle Set Screw requires a 3/32" Hex wrench
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Direct Connect Handle Mechanism
The handle screw will tighten against the square white stem of the cartridge (1). |
Multi-Piece Handle Mechanism Type A
The handle screw will tighten to the white stem of the cartridge (1). The handle hub (3) in this mechanism is connected to the gray plastic handle adapter (2). The handle hub (3) is then snapped to the assembly. |
Multi-Piece Handle Mechanism Type B
The handle screw will tighten against the white stem of the cartridge (1). This handle mechanism does not use a handle hub. The gray plastic handle adapter (2) snaps into the assembly. |
Recommended Articles |
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