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Spool Assembly for Delta NRP-574

Stainless steel balancing cartridge with bright brass threaded top with black orings.
Spool Assembly for Delta NRP-574 - Image 2
Spool Assembly for Delta NRP-574 - Image 3

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“Super fast shipping and reasonable shipping fee. Will definitely use again. ”
-Bill K.
06/02/2026

$61.27

 

The Delta Faucet RP574 is a pressure balancing spool assembly used in older Delta tub and shower faucet models to regulate water temperature.

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: 23510-1 Category: Tags: ,

Restore hot and cold water stability to your shower with the Delta RP574 Pressure Balance Spool Assembly. While designed for older Delta faucet models, this essential repair part is the perfect solution for fixing fluctuating water temperatures without needing to replace your entire shower valve.

 

NRP-574

 

  • The RP574 is a pressure balancing valve spool designed to prevent sudden changes in water temperature (scald guard feature) when water is run elsewhere in the house.
  • It is compatible with specific older Delta tub and shower faucet models, including the 600, 900, 1600, 1804, 1814, 1824, and 1848 series.
  • Compares to OEM RP574
  • Use as a generic replacement for OEM RP574
  • Stainless steel piston & body
  • Solid brass slotted hub
  • Replaces old OEM Delta spools

 

   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.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“The vacuum breaker on my outdoor spigot failed and Noel's Plumbing was the only placeI could find that had the appropriate mfr. part. I sent a text with photos on Wednesday evening to make sure the part I found was correct. In less than 2 hours later, I had a reply confirming it was the correct part. Placed my order that evening and received the part on Saturday afternoon (about 2.75 days) and my plumbing issue was resolved! I highly recommend - I really appreciated the prompt and pleasant response. ”
-Kimberly S.
04/25/2026
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