The 350ASTDA Double Check Detector Backflow Preventer with stainless steel body is ideal for fire protection applications, with a metered by-pass to detect leaks and unauthorized water use. Used in low health hazard applications.

Product Resources

Spec Sheets & Install

BIM / 3D Models / 2D Drawings

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Features And Benefits

  • 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 350ASTDAR for backflow replacements/retrofit
  • Lower maintenance costs from corrosion resistance of stainless body
  • Multiple shut-off and end connections available for installation versatility
  • Available in flanged, grooved, or grooved X flanged end connections for installation versatility
Lead Free
Zurn Wilkins

Backflow Attributes

  • Grooved for steel pipe, flanged
  • Stainless steel
  • 2-1/2", 3", 4", 6", 8", 10"
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