Zurn Industries - 4-350ASTOSY - 4'' 350AST Double Check Backflow Preventer with OS&Y gate Valves

Zurn Industries - 4-350ASTOSY

The Zurn Wilkins 350AST Double Check Backflow Preventer features a stainless Steel body and lightweight design. It provides low hazard protection and resists corrosion. Multiple shut-off and end connections are available for installation versatility.

Collection: 350AST
UPC: 612052112220
Online Product ID: 2972216
Length: 40.5"
Width: 18.5"
Height: 31.5"
Weight: 242 lbs.
Made In: US
Made in USA: Yes
Low Lead Compliant: Yes
Minimum Order Quantity: Yes


  • 4'' double check valve assembly with stainless Steel body - flanged OS&Y gate valves
  • Short lay-length for small space installation
  • Reliable performance and improved flow characteristics from patented compound check, allowing for installation in lower-pressure systems
  • Available as 350ASTR for custom length, drop in replacement
  • Ideal for any backflow replacement
  • Lower maintenance costs from corrosion resistance of stainless body
  • Available in flanged, grooved, or grooved x flanged end connections for installation versatility

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

4-350ASTOSY - Zurn Industries

Winthrop Supply is proud to present this decorative preventer, by Zurn Industries. The 4-350ASTOSY is made from premium materials, this Preventer offers great function and value for your home. This fixture is part of Zurn Industries's decorative 350AST 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.

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