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Moen Solutions

How to Tell the Difference Between a 1255, 150257 and 160657 Cartridge


The 1255, 150257 and 160657 cartridge service kits share the same cartridge, handle screw and hex wrench. The key difference is with the cartridge nuts they use. These cartridge nuts are not interchangeable so it's important to identify which one your faucet uses.
How do I Identify a faucet that uses one the these cartridges?
  1. The faucet will have one handle.
  2. The name "Moen" will appear on the front of the faucet.
  3. The faucet would have been installed after 2009.
  4. The faucets integrated water supply lines that protrude out from the bottom of the sink will be a flexible braided material.

If you answered yes to the 4 questions above, you will now need to determine which Cartridge Service Kit your faucet uses, continue to the next section. If your answer to any of the questions above was no, but you still see Moen on the faucet, Contact Moen for further assistance.

If these 3 service kits are so similar, how do I tell which one I need? 
Use to identify your product.

Step 1-Two Options

Research your documentation on Depending on which document you have, it will will contain useful information that can be reviewed on

Move to Step 2.


Take a picture of your faucet and let the Faucet Finder identify it. is proud to introduce a new feature, the Faucet Finder. This tool will allow you to upload an image to match your product with all similar Moen products. If the image is useable (a clear image with the faucet as the main focus) and the product is a Moen, it will automatically provide you with a model number. Move to Step 2.

If you were unable to identify your product, Contact Moen for additional details.

Step 2

Once you have you have determined your Model Number,Collection Name, SKU or UPC, you can access additional information online.

Model Number or Product Collection name:

Using the information you found, in the search field on enter the model number or collection name. To view the replacement parts and see which cartridge service kit is needed for the faucet scroll down on the page. 

SKU or UPC: 

The SKU and UPC are used by retailers and can sometimes be accessed quickly online by entering the number into a search engine. Or, Contact Moen  and we would be happy to assist you with your Moen product.


For additional information on troubleshooting and repair details for Moen products visit

Visually Identify your Cartridge Nut by removing the Handle 


  • As a safety precaution, the water supply shut off valves must be turned off. If you are unsure how to do this, see article How to Turn Off The Water Supply to the Faucet.
  • Please cover the sink drain.
  • Recommended Tools: 3/32" Hex Wrench, Flashlight 

Removing the Handle:

  1. Moen faucets will have an access hole containing a handle screw on either the front or back side of the the lever. Select models may have a plug button covering the access hole, if so, carefully pull it out.
  2. Insert a 3/32" hex wrench into the access hole and rotate it counter-clockwise to loosen the handle screw. It is not necessary to remove the handle screw fully from the handle, it only needs to be loosened enough to lift the handle off of the faucet.

View Your Assembly: 

Shine a flashlight on the inside of the faucet to determine the shape and material of the cartridge nut. You will see either a black non metallic or a brass cartridge nut. Once you have identified the shape, material and the color of the cartridge nut, use the images to the right to determine which cartridge service kit you need.


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1255 Cartridge Nut

  • Shape: Hexagonal
  • Material: Non-Metallic Black

150257 Cartridge Nut

  • Shape: Hexagonal
  • Material: Brass

160657 Cartridge Nut

  • Shape: 2 flat sides
  • Material: Non-Metallic Black

For additional information on Moen products visit and select the type of product you are repairing. The guide will contain repair details, troubleshooting and specific information on assembling handles associated with that style of product.

Still Not Finding What You're Looking For?

Contact Us or Call 1-800-BUY-MOEN           

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