LF919

Lead Free* Reduced Pressure Zone Assembly Backflow Preventers, Sizes 1/2 to 2 IN

  • Separate access covers for the check valves and relief valve for easier maintenance
  • Bottom-mounted relief valve reduces installation clearances
  • Top-mounted test cocks reduce installation clearances and make testing easier
  • Innovative plastic seat guides and check valve plastic cover bushing for trouble-free guiding

Select options below to identify the UPC, Order Code, and Repair Kit for a specific LF919

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