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Speakman RPG05-1124 Sentinel Mark II Cartridge

Black plastic cartridge with burgundy limit stop brass stem and black bottom seal.
Speakman RPG05-1124 Sentinel Mark II Cartridge - Image 2
Speakman RPG05-1124 Sentinel Mark II Cartridge - Image 3
Speakman RPG05-1124 Sentinel Mark II Cartridge - Image 4
Clear platic cartridge with brass stem and black oring.

chat iconWHAT OUR CUSTOMERS SAY…

“This place rocks! I have replaced two parts for an old Gerber faucet in the laundry tub. After the spout was leaking, I could not find the right washers anywhere. I had to replace the whole spout, which they had in stock, and it was priced competitively. Now, not a drop leaks. ”
-John D.
02/03/2024

$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, noelsplumbingsupply@fuse.net, 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.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“Order received and installed. Thank you very much (spoken mentally in my best Elvis voice). Really is nice to know that there is still a business out there that's got their act together! Appreciate the quick service and correct parts shipping. Thanks again.. jP ”
-Jack P.
04/02/2026