I have a moen single handle shower faucet that I am replacing the cartridge. I attached the cartridge puller with the screw, and the inner valve came right out. The cartridge casing is still inside. Any idea on how to get the casing out without having to tear an entire wall down?

Jon

We had a complaint exactly like yours a few days ago. I responded but Darrell1953 gave a much better solution and here it is.

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when the inner part of the Moen cartridge is removed the outer part can be retrieved with the aid of a different tool. I would like to know which tool you have chosen. One that never failed me was a tap. I forget exactly what size fits in there after you take that inside stem part out, but first you cut some threads into it and then you remove the tap. Put in a wooden dowel 3/8” outside diameter (if I recall correctly) by about 2-1/2” long and then put the tap back in there it would just push it out of there and then you need to retrieve the dowel, cleanup the inside of the valve body and you were ready for your new cartridge. The more expensive way is just to replace the valve.
Hope that helps. Let us know.

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Thanks Darrell! And good luck in retrieving the cartridge body, Tom

I recommend the Danco Two-in-One Core Puller (60885) that can be used to pull out the cartridge and the casing should they become separated. Amazon.com: Moen Cartridge Puller: Home Improvement

Hello John98760, and welcome to the plumbing website.

You responded to almost a year and 1/2 old post check the date on the left upper corner before you respond to a thread, Thanks.

John