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The Zurn Wilkins 720A Pressure Vacuum Breaker Assembly is used in high hazard applications for backsiphonage protection. Applications are primarily non-potable residential and commercial irrigation systems.

  • Features & Benefits
  • Resources
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  • Top of the line backsiphonage protection
  • All bronze body and bonnet construction
  • Proven reliability and consistent performance
Retrofit or Replacement
Zurn Wilkins

Product Resources

Spec Sheets & Install

BIM / 3D Models / 2D Drawings


Product FAQ

How do you adjust the output pressure of the Zurn Wilkins 720A Pressure Vacuum Breaker?

  • ​The pressure loss through the 720A is fixed, and is a function of the internal spring loaded check valve.  The output pressure of the 720A, or any backflow preventer, cannot be adjusted.