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Cartridge Replacement: 1215 One Handle Wall MountTub Filler

An easy-to-follow instructional guide explaining the process for replacing the 1215 cartridge in a Moen Single Handle Wall Mount Tub Filler.



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

The following instructions assume the handle and associated handle pieces have been removed. For additional details, visit "One Handle Wall Mount Tub Filler: Handle Assembly".

To View Complete Installation Video Visit: One Handle Wall Mount Tub Filler 1215 Cartridge Installation

Parts Legend:

5 Valve Body


4 Adapter


3 Cartridge


2 Cartridge Nut


1 Installation Sleeve


Cartridge Removal and Valve Body Preparation:

The instructions below are shown with the decorative escutcheon/backplate removed, however, removal is not necessary to complete this repair.


Use an adjustable wrench to unthread the cartridge nut (2) counter-clockwise to remove.


Pull the cartridge (3) out of the brass valve body (5).


Using needle-nose pliers, remove the adapter (4).



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

Apply the lubricant supplied with your 1215 cartridge (# 99915) to grease the outer o-ring and inside of the valve body (5).

Installing the Cartridge:
Snag_11883c4.png Slide the adapter (4) into the installation sleeve (1).

Confirm that the tab on the installation sleeve assembly (A) is facing up. Install the assembly (A) into the valve (5) body aligning the tab on the adapter (4) with the hole in the valve body (5).




Align the two posts on the cartridge (3) to the opening at the top of the adapter (4). Push the cartridge (3) into the valve body (5) until it stops.

Tighten the cartridge nut (2) onto the valve body (5) by turning clockwise until hand tight, and then turn an additional 1/4 turn with a wrench.

Reinstall the handle.




For additional information on One Handle Tub Fillers, visit One Handle Tub Fillers: Wall or Deck Mounts.

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