Watts LF909 RPZ Backflow Preventer Assembly

The Watts LF909 is a reduced pressure zone (RPZ) backflow preventer designed to protect potable water systems from contamination caused by backpressure or backsiphonage. Manufactured by Watts Water Technologies, this high-performance backflow prevention assembly is widely used in commercial buildings, industrial facilities, irrigation systems, and municipal water networks where reliable protection against cross-connection hazards is required. The LF909 prevents polluted water from reversing direction and entering the clean water supply, ensuring safe and compliant system operation.