957-FS

Reduced Pressure Zone Assembly Backflow Preventers with Flood Sensor – For 2 1/2 – 10 IN Sizes

  • Integrated sensor on relief valve for flood detection
  • Flood alert feature available with add-on connection kit, compatible with BMS and cellular communication
  • Extremely compact design for easy installation and service
  • Patented torsion spring checks providing the lowest pressure loss
  • Lightweight stainless steel construction (70% lighter than traditional designs)
  • Shutoff valve options available

Select options below to identify the UPC, Order Code, and Repair Kit for a specific 957-FS

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