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Model #1-NR3XL

Store SKU #378289

Store SO SKU #1001216821

1 in. Brass Water Pressure Reducing Valve

  • Brass construction resists corrosion
  • Offers 400 PSI maximum working water pressure
  • Ideal for residential and commercial water applications
  • See More Details

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Product Overview

The 1" NR3XL Pressure Reducing Valve is ideal for residential applications that require frequent cleaning of sediment and debris. The stainless steel strainer screen catches debris without buildup to protect your plumbing system, while the cartridge design ensures easy repairs. The NR3XL features a corrosion-resistant, threaded bell construction for rapid access to internals, and lowers lifetime costs through its water-conserving design. Meeting code and jobsite requirements, this popular Pressure Reducing Valve is used for landscaping, residential single-family, multifamily, public entrances, and more.
  • Short lay length and compact design installs in tight spaces
  • Cartridge-loaded design simplifies repairs
  • Time- and labor-saving tailpiece options include threaded, PEX, copper sweat and CPVC
  • Quality integral stainless steel strainer screen holds up over time
  • Highly durable, threaded bell resists corrosion and provides easy access to cartridge internals
  • ASSE® Listed 1003
  • IAPMO® Listed
  • CSA® Certified
  • Meets the requirements of NSF/ANSI 61
  • California residents

Info & Guides

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Name1 in. Brass Water Pressure Reducing Valve1 in. Lead-Free Bronze Water Pressure Reducing Valve with Double Union Female Copper Sweat1 in. Brass Water Pressure-Reducing Double-Union FNPT Valve1 in. Lead-Free Bronze Water Pressure Reducing Valve with Double Union Female Copper Sweat
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ConnectionFIPCopper SweatFemale Pipe ThreadCopper Sweat
ApplicationPotable WaterPotable WaterNon-Potable Water,Potable WaterPotable Water
Compatible Pipe MaterialBrassBrassBrassBrass
Maximum Pressure (psi)400400300300
Maximum Working Temperature (F)140140140140
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Inlet Diameter (In.)
Outlet Diameter (In.)
Product Depth (in.)
Product Height (in.)
5.5 in
Product Length (in.)
5.5 in
Product Width (in.)
2.8 in


Potable Water
Compatible Pipe Material
Lead Free
Maximum Pressure (psi)
Maximum Working Temperature (F)
Pack Size
Product Weight (lb.)
2.25 lb
Valve Type
Pressure Regulating

Warranty / Certifications

Manufacturer Warranty
All goods sold hereunder are warranted to be free from defects and factory workmanship for a period of one year from date of purchase.

Questions & Answers


I need to replace a wilkins BR4, what model is the right replacement ?

Asked by Will December 26, 2020

One pressure regulator is pretty much a replacement for any other. as long as long as it can handle expected inlet pressure and has desired set range. I like to go with same brand since I may be able to use same union fitting.. Obviously pipe size is important, 3/4" or 1" usually. Length of valve is important but usually you can add or subtract from pipe by soldering. Wilkins-Zurn NR3 is a good choice and easy to clean/service. NL= No Lead or meets no lead requirements, 3/4" or 1" refers to pipe size.

Do you turn down into valve to increase pressure?

Asked by Howard December 12, 2018

Yes, the screw adjusts the spring inside.

what model replaces model 70

Asked by bob June 6, 2018

The Model 70 was replaced by the Model 70XL to comply with current potable water standards. Please reference the Model 70XL valve for a direct replacement, available in 3/4" and 1".

Will this replace the older Wilkins Model 70 without piping modifications. The Model 70 is doubl...

Asked by Red February 21, 2018

My experience is with ¾” Model 70. I replaced a ¾” Model 70 today with ¾” NR3XL. The NR3XL was at least 5/8” shorter. Old installation was DU. Nice pull out. Had to work to get 5/8” or so play in pipe but no leaks and no soldering!

how to adjust pressure

Asked by Dano June 15, 2016

Loosen nut thats tightened againt the body. Clockwise on the bolt and counterclockwise will adjust the pressure.

What are the flow characteristics of this pressure reducing valve, high, medium, or low..?

Asked by Wingnut May 4, 2016

Let's attach some flow rates to your high, medium, or low. Let's say low is the water dispenser on your refrigerator, maybe 1 quart per minute. Let's say medium is two people showering in separate showers at same time, maybe 4 ½ GPM (Gallon per minute). Let's say high is two people showering, two people brushing their teeth and two others flushing. There is slim likelihood of them hitting lever within 35 seconds of each other so we’ll call high at 12 GPM. Here is link for SPECIFICATION or you can click on link at Info & Guides https://images.homedepot-static.com/catalog/pdfImages/c3/c3e87b43-9dd0-47a1-8d05-18ba87dab99d.pdf For a flow rate of 12 GPM, fall off from set pressure for 1" is less than 5.5 psi and for ¾” is about 7 psi. Fall off may be more at second story faucets.

how do you tell the size difference in the valves

Asked by robert March 9, 2016

The valve size is embossed on side of brass body along with water flow direction. The Letters W I L K I N S are there also. If you're asking "What size do I select?" Typically a pressure reducing valve is placed/located just after shutoof valve at inlet to house/building and is same size as pipe feeding it. A typical house has a ¾” PRV. One house I owned has 1” but it has 4 commodes, 3 showers/tub showers and a jetted tub

Which direction should I turn the bolt on top to decrease pressure??

Asked by Lenzie November 18, 2015

There is a "limiter" nut that is below the pressure bolt. Screw that nut as close to the bolt head as possible if you want 75psi,then turn the entire bolt head clockwise for more pressure, counterclockwise for less.

How do you increase water pressure

Asked by Golfer November 3, 2015

Turning the bolt head on the top of the dome will increase the pressure if turned one way and decrease the pressure if turned the other.

do you have a repair kit for the 1" Water pressure reducing valve model # NR3XL

Asked by Rusty April 6, 2015

Home Depot does have Repair Kit for Model 70 Here is info from Zurn-Wilkins site: RK1-NR3XL – Pressure Reducing Valve Repair Kit Complete Repair Kit for 1" Models NR3XL/NR3 UPC: 612052074528 For ¾” PRV RK34-NR3XL - PRESSURE REDUCING VALVE REPAIR KIT Complete Repair Kit for 3/4" Models NR3XL/NR3 UPC: 612052074511 If you “Google” the UPC number, the Zurn site give you a picture of parts included. The two kits (for 70 and NR3) look very similar except strainer assembly is assembled already for NR3 and in parts for 70. Don’t buy a foreign kit for a different valve! Zurn Industries, LLC | Wilkins 1747 Commerce Way, Paso Robles, CA U.S.A. 93446 Ph. 855-663-9876 When I've talked to them, quick response.

1 in. Brass Water Pressure Reducing Valve - page 2

Customer Reviews

  • 4.1
    out of 36 reviews
  • 72% recommend this product
Filter by:
Showing 1-10 of 36 reviews
Does Not Meet Spec
The problem with this valve is a pressure drop. According to spec provided by company, with 3 gpm, flow, pressure should not drop more than 2-3 PSI, in reality it drops 7-10 PSI. After speaking with Zurn-Wilkins customer service and Engineer, they confirmed, this valve for home installation has pressure drop above spec and above industry standard. See pictures. Zurn Engineer recommended 70XL model.
by HDReviewer
13 people found this helpful
Replaced a 25 year old Watts R2 regulator on a California Bay Area Home.
Configuration on my regulator was a union inlet and a MNPT on the outlet. The older Watts regulator union thread diameter is slightly different and did require replacing with the new supplied union. (I've seem this before; sometime in the past, the industry change the major diameter of the male threads). The length was very close to the older Watts and did not require cutting and soldering fittings. I was able to easily dig down less than a foot to the horizontal run of the supply line which allowed enough movement of the inlet connection to thread the regulator to the outlet leading into the house. I am a do-it -yourself-er and with decent plumbing skills and it took me about an hour. The only concern i had is the none metal cover for the pressure adjustment spring. Not sure how that is going to hold up in the years to come; thus the 4 out of 5 rating for quality and value.
by Leon
2 people found this helpful
by skyver3
by Yue
Works great, make sure you install it so water flows...
Works great, make sure you install it so water flows in the correct direction. It will not work if installed backward. Also, this came with only one union, but I was able to use my two existing unions.
by JOE
Great product. Fast shipping....
Great product. Fast shipping.
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
This product is perfect and works well. HOWEVER, it needs to come with both female unions. As p...
This product is perfect and works well. HOWEVER, it needs to come with both female unions. As pictured, it comes with one female union. If you do not have both female unions, you will not have both washers and you will have problems with leaks and you may not be able to find the proper washer (trust me). The part needs to be sold with both female unions!
by CSD1968
Very good fit...
Very good fit
by Oscar
Showing 1-10 of 36 reviews