LF909 Small

Lead Free* Reduced Pressure Valve Assembly Backflow Preventers with Flood Sensor - Small Diameter 3/4 - 2 IN Sizes

  • Sensor on the relief valve for flood detection
  • Flood alert feature activated with add-on connection kit, compatible with BMS and cellular communication
  • Exclusive relief valve design provides maximum capacity during emergency conditions
  • Compact modular design facilitates easy maintenance for in-line repairs
  • Horizontal or vertical (up or down) installation on limited sizes only
  • No special tools required for servicing
  • Horizontal or vertical (up or down) installation on limited sizes only

Select options below to identify the UPC, Order Code, and Repair Kit for a specific LF909 Small

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) 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