Oh my dude! I literally did this last night! What exactly is your problem? Answer from boringxadult on reddit.com
Reddit
reddit.com › r/howto › what am i doing wrong with this shower cartridge replacement?
r/howto on Reddit: What am I doing wrong with this shower cartridge replacement?
December 8, 2022 -
Hi guys!
My shower valve stopped working this morning, water wasn’t shutting off from the valve handle. My dad and I turned off the water line and replaced the cartridge. Moen 158084 was the original, and we replaced it with the Moen 1222 (Which is supposedly the correct modern replacement).
After putting the new valve in, we turned the water line back on, twisted the metal nob a bit and no water was coming out. After messing with it awhile we decided to take the replacement cartridge out and try again. While we were pulling, water started gushing out the pipe (water line was still on.)
Any idea what we might be doing wrong with the new cartridge? Did we maybe misalign something with the nob?
Thank you!
Moen
moen.ca › customer-support › cartridge-replacement
Faucet Cartridge Replacement | Customer Support | MOEN
Cartridge 1222 - (SHOWER FAUCET) Single-handle replacement cartridge, Posi-Temp®.
Videos
How to Remove & Install the 1222 Cartridge
08:46
Replacing A Moen 1222 Positemp Cartridge For Tub & Shower - Plumbing ...
04:57
How to Replace a Moen Posi-Temp Cartridge - YouTube
04:36
How to replace a Moen Shower cartridge - YouTube
11:04
How to Replace Shower Valve Cartridge - Moen Posi-Temp - YouTube
JustAnswer
justanswer.com › plumbing › r0ko6-searching-id-shower-cartridge.html
Shower Cartridge Replacement Guide: Moen 1222 vs. 158085
Indeed, that is a 1222 Positemp Moen cartridge.
RONA
rona.ca › home › products › plumbing › parts and accessories › cartridges › master plumber replacement bath or shower cartridge for moen 1222 faucet
Master Plumber Replacement Bath or Shower Cartridge for MOEN 1222 Faucet MO-10K | RONA
-This Master Plumber replacement cartridge features Posi-Temp balanced pressure technology. It's durable and easy to install.
MOEN
moen.com › moen-101 › cartridges › standard
Standard | Cartridges | MOEN 101 | MOEN
Discover the full line of Moen standard cartridges for one handle, two handle, roman tub, kitchen and bath faucets.
Amazon
amazon.com › ask › questions › TxI2W9WX7ZGVOV
Amazon.com: Customer Questions & Answers
I’m not exactly sure of the part numbers you were asking for but I know that 1222B and 1222 is exactly the same thing that B is for bulk that plumbers buy · Kevin J. McGuckin Jr. · September 6, 2019 ... There is know difference between the 2. The B stands for Bulk. Some suppliers buy in large quantities. Then they add the B to the # Moen will tell you that.
Moen
shop.moen.com › products › 1222
Moen 1222 Single-handle Replacement Cartridge, Posi-temp
To see the Cartridge Removal and Installation video for 1222, please visit: https://www.moen.com/customer-support/cartridge-replacement.
Canadian Tire
canadiantire.ca › home › tools & hardware › plumbing › faucet repair parts › cartridges
PlumbShop Moen Posi-Temp Tub & Shower Faucet Cartridge | Canadian Tire
PlumbShop Moen Posi-Temp Tub & Shower Faucet Cartridge
The PlumbShop Moen Posi-Temp Tub & Shower Faucet Cartridge is a reliable replacement designed to maintain consistent water temperature in your bath or shower. Built to work seamlessly with Posi-Temp pressure-balanced systems, this cartridge ensures stability, even when water is used elsewhere in the home. Its thoughtful design offers an effortless way to restore functionality and comfort to your shower, reducing the need for frequent adjustments.
Price $59.99
Moen
moen.ca › products › Moen › Moen-1222-Single-Handle-Replacement-Cartridge-Posi-Temp › 1222
Moen 1222 Single-Handle Replacement Cartridge, Posi- ...
To see the Cartridge Removal and Installation video for 1222, please visit: https://www.moen.com/customer-support/cartridge-replacement.
The Shower Head Store
theshowerheadstore.com › home › blog › moen replacement cartridges: moen 1222 vs 1225 & moen 1222 vs 1222b
Moen Replacement Cartridges: Moen 1222 Vs 1225 & Moen 1222 Vs 1222B
August 8, 2018 - Replacing Your Moen Shower Valve Cartridge But Don't Know Which One You Need? Discover The Differences Between The Moen 1222 Vs 1222B And The Moen 1222 Vs 1225.
Moen Solutions
solutions.moen.com › article library
Faucet Cartridges: Bathroom - Moen Solutions
May 22, 2025 - This guide will help you identify which cartridge any Moen one or two handle bathroom faucet uses by handle operation and visual identification.
H2ouse
h2ouse.org › home › which moen cartridge do i need?
Which Moen Cartridge Do I Need?
October 9, 2020 - Before you can replace your defective Moen shower valve cartridge, you must first be able to identify which type of valve cartridge you have in your particular shower faucet setup. This is done by finding the right cartridge ID number. Fortunately, Moen makes this process fairly simple because, over the last 40-years, they have only made four different types of cartridge valves. These are numbered 1200, 1222, 1225, and 1255.
JustAnswer
justanswer.com › plumbing › s568i-talking-cartridge-replacement.html
Cartridge Replacement Q&A: Differences Explained – Expert Guide
We needed to replace the moen cartridge 130156 in our shower. When we unscrewed the cartridge to get it out it didn’t · We are replacing a 1222 cartridge for our moen shower.
Moen Solutions
solutions.moen.com › article library
Faucet Cartridges: Shower - Moen Solutions
December 6, 2022 - How to identify which cartridge your Moen one, two or three handle bathroom tub and/or shower uses by handle operation and color images of the various cartridges.
Reliefinbath
reliefinbath.com › home › moen 158084 vs. 1222 shower faucet cartridges (2025)
Moen 158084 Vs. 1222 Shower Faucet Cartridges (2025) | Bathroom Gadgets Ideas
December 22, 2024 - Unlike the 158084, the 1222 controls both water temperature and volume. This allows you to adjust the temperature with the handle’s rotation and the pressure/flow with the handle’s vertical movement.
Menards
menards.com › main › plumbing › plumbing-installation-repair › faucet-repair › faucet-stems-cartridges-accessories › moen-reg-posi-temp-reg-one-handle-bath-replacement-cartridge › 1222 › p-1444440564618-c-8542.htm
Moen® Posi-Temp® One-Handle Bath Replacement Cartridge at Menards®
From finishes that are guaranteed to last a lifetime to faucets that perfectly balance your water pressure, MOEN sets the standard for exceptional beauty and reliable, innovative design.
The Home Depot
homedepot.com › p › MOEN-Posi-Temp-Pressure-0-9375-in-D-Balanced-Shower-Cartridge-1222 › 202059049
MOEN Posi-Temp Pressure 0.9375 in. D Balanced Shower Cartridge 1222 - The Home Depot
MOEN Posi-Temp Pressure 0.9375 in. D Balanced Shower Cartridge 1222
This Posi-Temp Pressure Balanced Shower Cartridge is designed for use with MOEN faucets. This durable, attractive cartridge is made of solid brass and offers hot/cold operation. Moen shower faucet cartridge replacement.
Price US$57.31
eBay
ebay.ca › home & garden › home improvement › plumbing & fixtures › other home plumbing & fixtures
NEW! Fits MOEN 1222/1222B POSI-TEMP Shower Cartridge 158084 | eBay
NEW! Fits MOEN 1222/1222B POSI-TEMP Shower Cartridge 158084
NEW! Fits MOEN 1222/1222B POSI-TEMP Shower Cartridge 158084 (#313969101434)
Price $16.57
Faucetcartridges
faucetcartridges.ca › collections › moen faucet cartridges & replacement parts
Moen Faucet Cartridges & Replacement Parts — K35B.com Faucet Cartridges Inc. - 778.688.6448
Fits Moen Single Lever Faucets Part Number 1222 M1222 Replacement For tub and shower faucets M-Line Moen Cartridge Posi-Temp 4-1/8" Length 46-1222...
Reddit
reddit.com › r/plumbing › help with a moen shower cartridge?
r/Plumbing on Reddit: Help with a Moen shower cartridge?
January 23, 2024 -
Hey folks, my old shower cartridge kicked the bucket yesterday. It got hard to turn and then it wouldn't turn off. I took it out and it's got the numbers 158085 and 158084 on it. I went to Home Depot and they didn't have that but they said the 1222 would work. Installed one last night and it leaked out the shower. Returned it and tried another one in case that first one was defective but it also leaks. I'm calling around and looking online but I can't find any 158085/84 cartridges anywhere.
Thanks in advance for any help!
Top answer 1 of 3
1
Looks like a Moen positemp. Moen 1222. Check to make sure there is no debris in the valve body that is affecting the seals.
2 of 3
1
You have the right cartridge, a 1222, but you may have damaged the valve itself when removing the old cartridge. Any scratches or gouges to the shower valve could cause it to leak. The gaskets on the side of the cartridge need a smooth surface to seal onto. There could also be debris inside the valve that’s causing it to not seal properly. Take it out, take a pic of the inside of the valve, use a paper towel to wipe any debris out, reinstall with plumber’s grease or silicone grease.