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Single Handle Faucet Cartridge for Glacier Bay & Allen + Roth RP20124

Tan cartridge body with light blue limit stop brass stem handle connection black o-ring and blue bottom seal.
Single Handle Faucet Cartridge for Glacier Bay & Allen + Roth RP20124 - Image 2
Single Handle Faucet Cartridge for Glacier Bay & Allen + Roth RP20124 - Image 3
Single Handle Faucet Cartridge for Glacier Bay & Allen + Roth RP20124 - Image 4
Single Handle Faucet Cartridge for Glacier Bay & Allen + Roth RP20124 - Image 5

chat iconWHAT OUR CUSTOMERS SAY…

“These people were extremely helpful in taking me through replacing a 25 year old hard water frozen cartridge on my Philrich sink faucet. They were able to identify the correct part I needed from a photo I sent (I had it figured out wrong). I was pleasantly surprised they had an obscure part like this, but they also told me how to extract the old one when I couldn’t get it out. They said to unscrew it after I had concluded from YouTube the old cartridge was supposed to just slide out. It threaded out as they said and saved me buying a cartridge extractor and a hernia. The whole experience has been excellent. ”
-Pete L.
03/10/2026

$87.47

 

The RP20124 is a single-handle ceramic cartridge used in various Peerless, Glacier Bay, and Allen + Roth faucets. It is a replacement part used to fix leaks or restore proper function to a single-handle tub and shower faucet.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, asknoel@noelsplumbingsupply.com, or via the text widget on this screen.

Is a dripping showerhead or inconsistent water temperature ruining your morning? The RP20124 Single-Handle Ceramic Cartridge is the ultimate DIY solution designed to stop annoying leaks, fix temperature-mixing issues, and restore smooth handle operation. Engineered with a durable 40mm ceramic disc system, this replacement valve cartridge acts as an exact fit for a wide variety of popular residential tub and shower fixtures.

 

RP20124

 

  • It is a replacement cartridge for single-handle tub and shower faucets. Replacing the cartridge is a common DIY fix for leaky faucets, which can save water and energy.
  • 4 1/4″ length
  • 40 MM Diameter

 

The tan cartridge has replaced the red & black cartridge.

 

 

 

Customer submitted images. 

 

Common questions about this product

Will this item replace the original OEM part? chevron-icon

Yes, this aftermarket part will replace your OEM part. 

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

chat iconWHAT OUR CUSTOMERS SAY…

“Cartridges are working perfectly! I could not find a replacement for a long time, until I found Noel's. Thank you. ”
-David F.
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