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Speakman RPG05-1124 Sentinel Mark II Cartridge

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“Outstanding fast delivery on two pieces of an ancient Wolverine bath stem for Kohler - from the early 40s I think. The new one has a different body design, but it screwed directly into the old hot/cold tree and was the exact 6" length. Forty eight hours after installation now, and all remains fine. Also, kudos to the people who set up the website and ordering process. Great work - clear photos and info ! PS: I'm not an employee or family...lol. I retired from electrical wholesaling here outside Chicago and I appreciate a good job. ”
-JM C.
07/31/2026

$69.17

 

The Speakman RPG05-1124 is a genuine replacement pressure balance cartridge for Speakman Sentinel Mark II and Echo shower valves. This cartridge helps regulate water pressure and temperature to prevent sudden changes while showering.

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.

SKU: 18702a Category: Tag:

Speakman Sentinel Mark II Cartridge

 

RPG05-1124

 

  • The RPG05-1124 is a pressure balance cartridge, a crucial internal component that balances the hot and cold water pressure to maintain a consistent water temperature, thus providing a scald guard function.
  • It is a direct replacement part for Speakman Sentinel Mark II and Echo shower valves.
  • It is designed for use with a rotate-handle activation type for single-handle faucets.
  • 4 1/8″ length
  • 40 MM diameter
  • Replaces the version of the cartridge below

 

Common questions about this product

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

Yes, this is the OEM recommended 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.

 

 

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