Zurn Industries - 212-350AOSY - 2-1/2'' 350A Double Check Backflow Preventer, with OS&Y Gates, FLG x FLG

Zurn Industries - 212-350AOSY

The 2-1/2'' 350AOSY Double Check Backflow Assembly, with flanged end OSandY gate valves, protects against back siphonage and backpressure in low health hazard applications for all market segments. The use of our Patented Compound Check guarantees reliable performance and improved flow characteristics. The backflows single access cover reduces maintenance downtime, while the grooved, epoxy-coated ductile iron body provide corrosion-resistance. Its lightweight design and short lay-length ensures easy, compact installation.

Collection: 350A
UPC: 612052070148
Online Product ID: 6192718
Length: 41.3"
Width: 21.5"
Height: 32.5"
Weight: 242 lbs.
Made in USA: Yes
Low Lead Compliant: Yes
Prop65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Minimum Order Quantity: Yes
Shipping:  230 lbs.


  • Patented Compound Check ensures reliable, long-lasting performance and improved flow characteristics
  • Installation approved and compliant in horizontal and vertical positions
  • Complete epoxy coating inside and outside of valve body eliminating exposure to corrosion
  • Lightweight design and short lay-length ensures easy, compact installation
  • ASSE Listed
  • AWWA Compliant
  • IAPMO Listed
  • CSA Certified
  • UL and C-LU Classified
  • FM Approved

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

212-350AOSY - Zurn Industries

Winthrop Supply is proud to present this decorative preventer, by Zurn Industries. The 212-350AOSY is made from premium materials, this Preventer offers great function and value for your home. This fixture is part of Zurn Industries's decorative 350A 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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