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American Standard 51091-0070A Reliant Pressure Balance Shower Cartridge

White plastic body with black rubber seals green seats and grey plastic top.
White plastic body with black rubber seals green seats and grey plastic top.

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“Made a purchase online (I live in a different state). They were super responsive and helpful. I literally had the item in my hand within 24 hours. Simply amazing service! ”
-Craig S.
01/05/2021

$61.27

 

This Pressure Balance Unit maintains a constant output temperature in response to changes in hot and cold water supply pressure. This means there’s less chance you’ll experience dramatic changes in water temperature. The diaphragm system with integrated check valves is engineered to eliminate cross flow and this Pressure Balance Unit is also designed to avoid failure due to mineral deposits, so it is ideal for use in hard water areas.

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: 16538A Category: Tag:

American Standard 051091-0070A Pressure Balance Cartridge is a genuine OEM replacement part designed for use with the Reliant+ and Reliant 3 bath and shower faucet series. This unit is primarily engineered to stabilize water temperature and prevent sudden fluctuations that can lead to accidental scalding.

 

51091-0070A

 

  • Plastic construction for durability
  • Hot/cold cartridge for your tub and shower
  • Helps prevent accidental scalding
  • Easy to install
  • Pressure balancing kit – includes screws & disk
  • For use with American Standard Reliant Plus bath and shower trim kit

 

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…

“This place is amazing. I live in San Antonio, Texas and there are a few plumbing stores with vintage parts but they never have what I need and the ordering process takes them weeks. I found a rare part at Noels by reverse image search but they will do it for you. I've used them 3 times. Their agents are knowledgable and polite. They will find you the same part or the after market part and get you going on your way. They have 2-3 day shipping. My house was built in the 30's and they know exactly what the after market parts are that I need. I save money and time going to them. I sure wish they were in San Antonio! I will just go directly to Noel's next time - they are LEGENDS! ”
-BP W.
06/21/2026
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