Moen 1222 Posi-Temp cartridge

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What it fits

• Moen 101 says it "fits all Posi-Temp" tub/shower valves.
• Moen's shower chart describes the valve as a pressure-balanced cycling valve with no volume control.
• Examples from Moen documents: Essie Posi-Temp tub/shower (82330 series) and Align Posi-Temp trim (T2191, T2192, T2193) both list the 1222.

How to recognize it

• Handle: rotates only, with no push/pull. On the 82330 series, Moen says the handle turns counterclockwise through a 270° arc, with off at 6 o'clock.
• Cartridge: Moen 101 lists high-temperature thermoplastic and brass construction with a corrosion-resistant polyphenylene shell. It has an "H&C" tab and oval rubber grommets on each side.
• It is held by a retainer clip that slides out the top of the brass valve body.

Related part numbers

Removal, in short

1. Remove the handle and handle parts (set screw, adapter, stops, stop tube; the details depend on your trim).
2. Pull the retainer clip up and out of the top of the valve body with needle-nose pliers. If you can't reach it, remove the escutcheon. Don't drop the clip into the wall.
3. Rotate the cartridge slightly with the plastic twisting tool. Moen's article says "a little more than 1/4 of a turn (45 degrees)", which contradicts itself (a quarter turn is 90°), so just turn it until the body loosens. Then grip the stem with pliers and pull. It may take real effort. If it won't budge, see stuck cartridge.
4. Clean and flush the valve body before you install the new cartridge.
5. Grease the oval grommets. Insert the new cartridge with the H&C tab up and sit it flush without rotating it. Refit the clip; if the clip won't go in, the cartridge isn't flush.

Hot and cold reversed? Moen's fix for the 1222 is to take the cartridge out and rotate the whole cartridge 180°. Turning only the stem won't do it. This is also the fix when the supply lines are reversed (for example, back-to-back installs).

Stem broke off and the shell is stuck? Moen gives a separate procedure using a 7/16" tap. It is summarized in our stuck-cartridge guide.

Don't swap it for a 1225

Moen lists the 1222 and 1225 for different valve types, and none of the Moen documents we checked lists one as a substitute for the other. If someone put a 1225 into a Posi-Temp valve, see wrong cartridge jammed in the valve. For the full comparison, see Moen 1222 vs 1225.