Zurn Industries - 10-450OSY - 10'' 450 Double Check Backflow Preventer with OS&Y gate valves

Zurn Industries - 10-450OSY

The 10'' 450OSY Double Check Backflow Assembly, with OSandY gate valves, is utilized in low health hazard applications for protection against both back siphonage and backpressure of polluted water into the potable water supply. Shaped in the n-Pattern, the Model 450 is ideal for both new and retrofit installations in compact locations. The patented, center-stem guided Compound Check provides low headloss and reliable, superior performance. It also features a convenient single access cover to reduce maintenance downtime. Materials include a corrosion-resistant, epoxy-coated ductile iron body and access covers, and stainless steel fasteners and springs.

Collection: 450
UPC: 612052080574
Online Product ID: 5729160
Length: 55"
Width: 45"
Height: 54"
Weight: 1195 lbs.
Made in USA: Yes
Low Lead Compliant: Yes
Listing: UL, C-UL
Prop65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Minimum Order Quantity: Yes
Shipping: x W:55"x H:55" 1410 lbs.


  • Compact size ensures easy retrofit applications in tight spaces
  • Patented Compound Check offers reliable performance and improved flow characteristics
  • n-Pattern allows for use in compact enclosures
  • Epoxy-coated ductile iron body protects against corrosion
  • Lead-free
  • ASSE Listed
  • IAPMO Listed
  • AWWA Compliant
  • UL Classified
  • C-UL Classified

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

10-450OSY - Zurn Industries

Winthrop Supply is proud to present this decorative preventer, by Zurn Industries. The 10-450OSY is made from premium materials, this Preventer offers great function and value for your home. This fixture is part of Zurn Industries's decorative 450 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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