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Bonnet Nut for Delta & Peerless NRP75852

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“The cartridge in my kitchen sink broke last week so I've been without that sink for a whole week. I ordered a replacement from Noel's, which I could not find anywhere else and it worked perfectly. Thank you! You saved me! ”
-Matt F.
09/19/2025

$28.47

 

The Peerless RP75852 is a rough bonnet nut used as a replacement part in specific Delta and Peerless single-handle tub and shower valves.

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: 41720a Category: Tags: , ,

The Delta and Peerless RP75852 Rough Bonnet Nut is a premium, genuine OEM replacement part engineered to restore your faucet to peak performance. Designed to securely hold the faucet or shower valve cartridge tightly in place, this heavy-duty rough bonnet nut is the ultimate solution for fixing loose handles, stopping annoying drips, and stopping underlying valve body leaks.

 

NRP75852

 

  • Rough Bonnet Nut
  • Designed to coordinate with the Cassidy Collections and resist rust and corrosion.
  • Compares to OEM RP75852
  • Use as a generic replacement for OEM RP75852

Common questions about this product

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…

“Do you need a vintage plumbing part and nobody seems to be able to find it in your area? Save yourself time and hassle and go to Noel's Plumbing website. You can text them a photo of the part and they will find it in minutes and give you the link to order it, all at a competitive price. My plumbers seem incapable of doing this and hand the job off to me. What can you do? But Noel's always has the 1930s parts I need or the aftermarket part that will get the job done. If I need it fast I can get it in 2-3 days from them and they know exactly what they are doing. It's a good old-fashioned plumbing store with all the parts you could possibly need and people who know how to get them. The service is top level. The staff pick up the phone after one or two rings. They are polite and KNOWLEDGABLE. I'm so tired of dealing with folks who can't find a chicken in a hen house. LOL. ”
-Bry W.
06/23/2026