Zurn Industries Backflow Prevention Preventers
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Zurn Industries 4'' 375AST Reduced Pressure Principle Backflow Preventer with OSandY gate Valves

SKU: 4-375ASTOSY

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  • Product Type Preventer
  • Length 40.5"  Width 18.5"  Height 31.5"  Weight 283 lbs. 
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Product Details

Zurn Industries 4-375ASTOSY

The Zurn Wilkins 375AST Reduced Pressure Principle Backflow Preventer features a stainless Steel body and lightweight design. It provides high hazard protection and resists corrosion. Multiple shut-off and end connections available for installation versatility.


  • Collection 375AST
  • UPC 612052112237
  • Online Product ID 2972229
  • Product Line 480
  • Length 40.5"
  • Width 18.5"
  • Height 31.5"
  • Weight 283 lbs.
  • Made In United States
  • Made in USA yes
  • Low Lead Compliant yes
  • Prop65 Warning Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Additional information

  • 4'' reduced pressure principle 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 backflow replacements/retrofit 375ASTR 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

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