513-721-5286 | 1-888-Ask-Noel | Mon-Fri: 8:00 AM – 5:00 PM
Account

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

chat iconWHAT OUR CUSTOMERS SAY…

“Just before an event, we had a 9 7/8" round drain cover snap in half. It was an odd size and Noel's was the only place that seemed to have one that would fit. We couldn't leave the hole exposed during the event, and Noel's was kind enough to make sure it was overnighted to us. Their effort was truly appreciated and the cover fit perfectly! I highly recommend them! ”
-Linda C.
03/27/2026

$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…

“I just wanted to thank you for your incredible service! I ordered Sterling Chrome Plate Handles on Monday late afternoon and they arrived today, Thursday early afternoon. They are exactly what we needed and are now installed and working perfectly. You are the BEST!!! ”
-Margaret Z.
10/20/2022
Account