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Pressure Balance Tub & Shower Cartridge for Mainline A507975

White plastic cartridge with red and blue limit stop with square brass stem and black rubber seals on the bottom.
Pressure Balance Tub & Shower Cartridge for Mainline A507975 - Image 2
Pressure Balance Tub & Shower Cartridge for Mainline A507975 - Image 3
Pressure Balance Tub & Shower Cartridge for Mainline A507975 - Image 4

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

$74.17

 

The Mainline A507975 is a washerless pressure balance replacement cartridge designed specifically for 410V series tub and shower rough-in valves. It is a critical plumbing component used to maintain consistent water temperature and pressure while repairing leaks in shower systems.

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: 97900-1 Category: Tag:

Pressure Balance Cartridge for Mainline

 

A507975     

 

  • A washerless pressure balance cartridge designed to prevent sudden temperature changes in the shower or tub.
  • Designed for use with 410V, 410VLS, 410VPEX, and 410-LS pressure balance tub and shower valves.
  • 5 3/8″ length

 

Customer submitted image. 

 

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.

 

 

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

Yes, this aftermarket part will replace your OEM part. 

chat iconWHAT OUR CUSTOMERS SAY…

“I have come here as a maintenance technician countless times. NOT ONCE did these guys fail to impress me with their knowledge. They are across town for me and I don’t complain due to their unmatched service. I can bring in a busted chewed up cartridge or part and within 10 seconds the guys are like “ yup we have one right over here” and will bring me the exact match from what I had. Simply top tier. -SNS management ”
-Isaac G.
06/15/2024
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