Zurn Industries Backflow Prevention Preventers
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Zurn Industries 2-1/2'' 350Ast Double Check Backflow Preventer With Flanged End OsAndY Gate Vlvs

SKU: 212-350ASTOSY

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Product Details

Zurn Industries 212-350ASTOSY

The 2-1/2'' 350ASTOSY Double Check Backflow Assembly, with flanged end OSandY gate valves, protects against back siphonage and backpressure in low health hazard applications. The use of our Patented Compound Check guarantees reliable performance and improved flow characteristics, making installation ideal for lower-pressure systems. Its 304L grade stainless steel valve body and access covers are corrosion-resistant for lower lifetime maintenance costs. Its lightweight design and short lay-length also ensures easy, compact installation.


The 2-1/2'''' 350ASTOSY Double Check Backflow Assembly, with flanged end OS&Y gate valves, protects against backsiphonage and backpressure in low health hazard applications. The use of our Patented Compound Check guarantees reliable performance and improved flow characteristics, making installation ideal for lower-pressure systems. Its 304L grade stainless steel valve body and access covers are corrosion-resistant for lower lifetime maintenance costs. Its lightweight design and short lay-length also ensures easy, compact installation.


  • Collection 350AST
  • UPC 612052112121
  • Online Product ID 5729217
  • Length 40"
  • Width 18"
  • Height 31.5"
  • Weight 40 lbs.
  • Made In USA
  • Made in USA yes
  • Low Lead Compliant yes
  • Listing UL, C-UL
  • Unit Of Measure Each
  • Prop65 Warning Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Minimum Order Quantity 1
  • Shipping L:33.25"x W:17.75"x H:20.5" 146 lbs.

Additional information

  • Stainless steel body and access covers offer corrosion-resistance
  • Lightweight design and short lay-length ensures easy, compact installation
  • Ideal for any Backflow Preventer replacement
  • Model 350ASTR available for custom length, drop-in replacements
  • ASSE® Listed 1015
  • AWWA Compliant C510 (with gates only), and C550
  • UL® Classified
  • C-UL® Classified
  • FM® Approved
  • CSA® Certified

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