Where To Buy


The Zurn Wilkins 450DA Double Check Detector Assembly is shaped in the "n" pattern, and is ideal for new or retrofit installations in tight locations. For fire protection applications, with a metered by-pass to detect leaks and other water use.

  • Features & Benefits
  • Resources
  • Videos
  • Perfect for retrofit in tight spaces
  • N pattern allows for smaller enclosures
  • Utilizes Zurn Wilkins low headloss Compound Check
Retrofit or Replacement
Zurn Wilkins

Backflow Attributes

  • Grooved for steel, flanged
  • Epoxy coated ductile iron
  • 4", 6" , 8", 10"

Product Resources

BIM / 3D Models / 2D Drawings