LF860-FS Large

Lead Free* MasterSeries In-Line Reduced Pressure Zone Assembly Backflow Preventers with Flood Sensor - Large Diameter 2-1/2 - 10 IN Sizes

  • Advanced ArmorTek coating technology with built-in electrochemical corrosion inhibitor and microbial inhibitor to resist corrosion of internal parts
  • Stainless-steel relief valve seat and stainless-steel check components for maximum performance and durability
  • Highly suitable for potable drinking water systems where code mandates protection from backpressure and backsiphonage conditions
  • Potable water protection against cross-connection contamination of high hazard (toxic) fluids in water services
  • Integrated sensor to detect potential flooding and trigger alerts, activated with add-on connection kit for building management systems or cellular communication

Approval 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