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Scald Guard Replacement Cartridge for Delta 1600 Series Tub and Shower Faucets NRP1991 NRP3560

White plastic cartridge with brass stem black oring stainless bottom with black seats and stainless springs.
Scald Guard Replacement Cartridge for Delta 1600 Series Tub and Shower Faucets NRP1991 NRP3560 - Image 2
Scald Guard Replacement Cartridge for Delta 1600 Series Tub and Shower Faucets NRP1991 NRP3560 - Image 3

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“We were able to buy parts for our antique toilet here! Unfortunately, the toilet fell off the wall so we had to return the parts before we got the chance to use them. But returning was quick and easy! The staff is super helpful. ”
-Dori M.
09/23/2023

$35.27

 

The Delta RP1991 is a replacement stem unit cartridge designed specifically for Delta 1600 Series single-handle tub and shower faucets. It is prominently used in older Scald-Guard plumbing configurations manufactured roughly between 1974 and 1993.

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: 11264 Category: Tags: ,

Stop annoying faucet drips and restore smooth temperature control with the Delta RP1991 Stem Unit & Seats. Engineered specifically as a replacement part, this assembly is designed for Delta 1600 Series single-handle tub and shower faucets featuring the “Scald-Guard” trim. Whether your older shower valve is leaking, sticking, or struggling to balance hot and cold water, replacing the worn internal stem and seats is the ultimate, long-lasting solution.

 

NRP1991     NRP3560

 

  • Compares to OEM RP1991 RP3560
  • Use as a generic replacement OEM RP1991 RP3560
  • 2″ length
  • Oval broach
  • Includes seats & springs
  • Replacement part for Old Style 1600 Series Faucets

 

Related Documents

 

Delta Model 1600 Series Parts

 

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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