Zurn Industries - 3-350 - 3'' 350 Double Check Valve Backflow Preventer, with NRS Gates, FLG x FLG

Zurn Industries - 3-350

The 3'' 350 Double Check Valve Backflow Assembly, with NRS gate valves, is used on potable water lines in all low health hazard applications for protection against both back siphonage and backpressure. Its convenient single access cover saves you unnecessary maintenance costs and repair time, and the patented compound check guarantees reliable performance and improved flow characteristics. The epoxy-coated ductile iron body provide corrosion-resistance, and the multiple shut-off and end connection options increase the installation versatility of the 350.

Collection: 350 (lg)
UPC: 612052046020
Online Product ID: 2972097
Length: 36.8"
Width: 19.3"
Height: 28.3"
Weight: 241 lbs.
Made in USA: Yes
Low Lead Compliant: Yes
Prop65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Minimum Order Quantity: Yes
Shipping: x W:21"x H:30" 230 lbs.


  • Short lay-length and multiple connection options provide versatile installation in compact spaces
  • Single access cover eases access, reducing maintenance costs and downtime
  • Patented Compound Check offers reliable performance and improved flow characteristics
  • Complete epoxy coating inside and outside of valve body eliminating exposure to corrosion
  • Lead-free
  • ASSE Listed
  • CSA Certified
  • IAPMO Listed
  • AWWA Compliant
  • UL and C-LU Classified

Professional delivery is available for every product we sell. We would be happy to coordinate delivery for you!

3-350 - Zurn Industries

Winthrop Supply is proud to present this decorative preventer, by Zurn Industries. The 3-350 is made from premium materials, this Preventer offers great function and value for your home. This fixture is part of Zurn Industries's decorative 350 (lg) Collection, so make sure to check out other styles of fixtures to accessorize your room.

Zurn places the customer first, building value and trust through superior knowledge of the global markets we serve. Our products and services will continue to provide innovative water solutions delivered by exceptional people. Zurn Engineered Water Solutions® is a recognized leader in commercial, municipal, and industrial markets. Zurn manufactures the largest breadth of engineered water solutions in the industry, including a wide spectrum of sustainable plumbing products. Zurn delivers total building solutions for new construction and retrofit applications that enhance any building’s environment.

Zurn Industries Warranty

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