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LF800M4QT

Lead-free* Anti-Siphon Pressure Vacuum Breaker Backflow Preventers Sizes: 1/2 IN - 2 IN (15mm – 50mm)

  • Test costs are positioned for easy testing and winterization
  • Health hazard protection level
  • Replaceable plastic seat
  • Acetal bonnet acts as freeze plug to prevent body damage

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific LF800M4QT

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA