Description
The Watts F391008 3/4″ Lead-Free Reduced Pressure Zone Assembly LF909QTFS protects potable water lines by maintaining a controlled pressure barrier between inlet and outlet sections, preventing reverse flow within HVAC systems and connected plumbing networks. The internal dual-check structure works in sequence to isolate pressure changes while directing unwanted backflow into a monitored relief zone. An integrated strainer captures suspended particles before they reach internal valve components, supporting smoother operation and reduced internal restriction. Installed in regulated water distribution setups, it maintains stable flow separation and consistent protection across repeated operating cycles in supply line settings.
