1212 M-Core Cartridge 2 Series: 4 Port Valve

Preparation:

• The water supply shut off valves must be turned off- see article How To Turn Off The Water Supply To The Faucet.
• Recommended Tools: Adjustable Wrench or Pliers, Needle-Nose Pliers, 3/32" Hex Wrench
• We recommend covering the drain before beginning so to not lost any parts down the drain.

Handle Removal:

Using a 3/32" Hex Wrench, loosen the Handle Screw until you can remove the Handle.

Slide the Sleeve off of the assembly.

Unthread and remove the Cartridge Nut (1). Pull the gray Cartridge (2) out.

Using Needle-Nose pliers, remove the Pressure Balancing Puck (3), O-Ring and Adapter (4).

Grease the Outer O-Ring and inside of Valve Body (5).

Note: If you notice residue inside the Valve Body (5), see article Valve Body Cleaning and Flushing.