Skip to main content
Zurn Industries Backflow Prevention Preventers
Zurn Industries Link

Zurn Industries 4'' Double Check Backflow Preventer

SKU: 4-450OSYG

$10,953.00

Price

Prices and information shown are subject to verification by our showroom personnel. In the event of a discrepancy, we reserve the right to make any corrections necessary. Freight charges may be applicable to certain products - if so, freight charges will be quoted separately.

Questions About Zurn Industries 4-450OSYG?
BK Plumbing has professionals available to assist you with your selection from Zurn Industries.
Email an Expert

450 Collection

View All

More Like This

Product Details

Zurn Industries 4-450OSYG

The 4'' 450OSYG Double Check Backflow Assembly, with grooved end 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 612052045375
  • Online Product ID 5729288
  • Length 35"
  • Width 30.5"
  • Height 38"
  • Weight 280 lbs.
  • Made in USA yes
  • Low Lead Compliant yes
  • Listing UL, C-UL
  • Prop65 Warning Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Shipping x W:30.5"x H:37.2" 280 lbs.

Additional information

  • 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

About This Brand

Navigate to top of page