The Zurn 114-375XL Reduced Pressure Principle Assembly is designed to be installed on the potable water supply lines of commercial or residential properties. This lead-free backflow preventer will protect against backs iphonge and backpressure which can lead to potential health hazards. The Zurn 375XL has been engineered for convenience by making the patented pressure vessel removable and gives top access to the test cocks. This assembly is not only lead-free, but also uses stainless steel struts, ball valve handles, and nuts. 

Zurn 375XL Standards of Compliance

• FASSE® Listed 1013
  
• CSA® Certified B64.4
  
• UL® Classified 
  
• Meets NSF/ANSI 61 & 372 Requirements
  
• Safe Drinking Water Act Compliant
  
• IAPMO® Listed
  
• AWWA complaint C511
  
• C-UL® Classified
  
• Approved by the FCCCHR

Winterization. Since the Zurn 375XL can be installed both inside and outside it is important that you know how to winterize your backflow preventor. 
Simple Maintenance. By creating the patented pressure vessel, Zurn was able to reduce water down time by 300%. The blow out flush fitting provides a simple way to flush out your system in the fall with an air compressor, and in the spring with a water hose.