What Size Screw Does Moen 1222 Cartridge Use?

The Moen 1222 Single-Handle PosiTemp Shower Valve is a popular product, but one that may occasionally require maintenance or repair. One common issue is a loose or lost screw, which can cause the handle to fall off. This can be a frustrating experience, especially if the screw falls down the drain. While Moen does not sell individual screws, it is possible to identify the standard screw size and purchase a replacement from a hardware store. In this case, the screw size is #10-24 x 1/2”, and it is recommended to use a stainless steel screw.

Moen 1222 cartridge installation

To install the Moen 1222 cartridge, follow these steps:

Firstly, ensure that the water supply shut-off valves are turned off. Cover the drain before beginning to prevent any small parts from falling down the drain. The following instructions assume that the handle and associated handle pieces have been removed. If you require information on this, visit the Moen website and select the type of product you are repairing.

Now, to begin the installation of the Moen 1222 cartridge:

• Remove the retainer clip using needle-nose pliers. Slide the retainer clip up and out from the top of the valve body. Be careful not to drop the retainer clip behind the wall. If the retainer clip is inaccessible, use a Phillips screwdriver to unthread the escutcheon screws and remove the escutcheon plate.
• Remove the old cartridge. Use a plastic twisting tool to rotate the cartridge a little more than a quarter turn (45 degrees). The cartridge body will bulge outwards. Remove the twisting tool and, using pliers or channel locks, grab the stem of the cartridge and pull it out.
• Clean and flush the valve body before installing the new cartridge.
• Lubricate the surface of the oval rubber grommets on either side of the cartridge.
• Install the new cartridge. Ensure that the H and C tab is pointing up. Slide the cartridge into the valve body but do not rotate it. Make sure the H&C tab on the cartridge is flush with the valve body.
• Slide the retainer clip back through the slot on the brass valve body. If you encounter any resistance, check that the cartridge is flush with the valve body.
• Position the stem of the cartridge, ensuring the "notched" side of the brass stem is facing opposite the "H&C".

For additional information, you can refer to the Moen website or their YouTube channel, which provides video tutorials on cartridge installation and removal.

Screw size for Moen shower cartridge adapter

If you're looking to replace the screw for your Moen shower cartridge adapter, you've come to the right place. It's important to get the correct screw size to ensure your shower handle is secure and functional.

The screw that holds the adapter in place is typically a #10-24 x 1/2" screw, and it is recommended to use a stainless steel screw for this purpose. This specific screw size and type will ensure a proper fit and maintain the integrity of your shower fixture.

To replace the screw, you will need to remove the handle and the white plastic adapter that sits between the handle and the valve. This will give you access to the area where the screw is located. It is worth noting that the screw under the handle is not the same as the set screw.

In addition to the screw size, it is also important to have the right tools for the job. A 7/64 hex wrench is usually suitable for removing the handle set screw, followed by a Phillips screwdriver to remove the handle adapter.

Recommended tools for Moen 1222 installation

To install the Moen 1222 cartridge, it is imperative to turn off the water supply and open the faucet to relieve water pressure. The recommended tools for this installation process are:

• Large pliers or channel locks: These tools are essential for gripping and manipulating larger objects during the installation.
• Needle-nose pliers: This type of pliers has a long, thin nose, perfect for reaching into tight spaces. They are ideal for removing the retainer clip and other small parts.
• Phillips screwdriver: A Phillips screwdriver is required to unthread the escutcheon screws and remove the escutcheon plate if needed.

Additionally, a plastic twisting tool is used to rotate the cartridge during the removal process. This tool is specifically designed to grip and turn the cartridge with ease.

It is also recommended to cover the drain before beginning the installation to prevent any small parts from falling down the drain and becoming lost.

The Moen 1222 installation requires careful attention to detail and a methodical approach. By following the recommended steps and using the specified tools, individuals can successfully install the Moen 1222 cartridge in their plumbing systems.

How to remove Moen 1222 cartridge

To remove a Moen 1222 cartridge, you will need the following tools: large pliers or channel locks, needle-nose pliers, and a Phillips-head screwdriver. The Moen website also provides an instructional video on removing and installing the 1222 cartridge, which can be found at moen.com/customer-support/cartridge-replacement.

Before beginning, it is recommended to cover the drain so that no small parts are lost down the drain. Also, ensure that the water supply shut-off valves are turned off.

• Remove the retainer clip by using needle-nose pliers to slide it up and out from the top of the valve body. Be careful not to drop the retainer clip behind the wall. If the retainer clip is inaccessible, use a Phillips-head screwdriver to remove the escutcheon screws and take off the escutcheon plate.
• Use a plastic twisting tool to rotate the cartridge slightly more than a 1/4 turn (45 degrees). The cartridge body will bulge outwards slightly. Then, remove the twisting tool.
• Using pliers or channel locks, grab the stem of the cartridge and pull it out. This may require some force.

It is important to note that Moen recommends cleaning and flushing the valve body before installing a new cartridge. This can be done by referring to the Valve Body Cleaning and Flushing instructions provided by Moen.

Additionally, the Moen website offers a range of resources, including installation guides, troubleshooting advice, and warranty information, to support customers in maintaining and repairing their products.

Moen 1222 cartridge installation troubleshooting

This guide will take you through the process of replacing a 1222 cartridge in a single-handle Posi-Temp valve shower. Before you begin, it's important to turn off the water supply shut-off valves. It is also recommended to cover the drain to ensure no small parts are lost down it.

Step 1: Remove the retainer clip

Use a pair of needle-nose pliers to slide the retainer clip up and out from the top of the valve body. Take care not to drop the clip behind the wall. If the retainer clip is inaccessible, use a Phillips screwdriver to unthread the escutcheon screws and remove the escutcheon plate.

Step 2: Remove the cartridge

Using a plastic twisting tool, rotate the cartridge a little more than a quarter turn (45 degrees). The cartridge body will bulge outwards. Remove the twisting tool and, using pliers or channel locks, grab the stem of the cartridge and pull it out. This may require some force.

Note: It is highly recommended to clean and flush the valve body before installing the new cartridge.

Step 3: Lubricate the cartridge

Lubricate the surface of the oval rubber grommets on either side of the cartridge.

Step 4: Install the new cartridge

Make sure the H and C tab is pointing up. Slide the cartridge into the valve body. Do not rotate the cartridge. Ensure that the H&C tab on the cartridge is flush with the valve body.

Step 5: Reattach the retainer clip

Gently slide the retainer clip back through the slot on the brass valve body. If you encounter any resistance, check that the cartridge is flush with the valve body. If the retainer clip cannot be installed, appears damaged, or is broken, do not turn the water back on until the retainer clip is replaced.

Step 6: Position the cartridge stem

Ensure the "notched" side of the brass stem is facing opposite the "H&C". To reverse hot and cold, refer to the article "How to Reverse Hot and Cold for a 1222 Cartridge".

For further assistance, you can refer to the 1222 Cartridge Removal and Installation video, or contact Moen customer support.

Frequently asked questions