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

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“Amazing experts!!! Very helpful!! Even available after hours!!! ”
-Brenda Y
09/04/2023

$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…

“Do you need a vintage plumbing part and nobody seems to be able to find it in your area? Save yourself time and hassle and go to Noel's Plumbing website. You can text them a photo of the part and they will find it in minutes and give you the link to order it, all at a competitive price. My plumbers seem incapable of doing this and hand the job off to me. What can you do? But Noel's always has the 1930s parts I need or the aftermarket part that will get the job done. If I need it fast I can get it in 2-3 days from them and they know exactly what they are doing. It's a good old-fashioned plumbing store with all the parts you could possibly need and people who know how to get them. The service is top level. The staff pick up the phone after one or two rings. They are polite and KNOWLEDGABLE. I'm so tired of dealing with folks who can't find a chicken in a hen house. LOL. ”
-Bry W.
06/23/2026