Watts 1 in. D X 1 in. D FNPT x FNPT Brass Backflow Preventer Double Check Valve

This 1-inch lead free double check valve backflow preventer assembly model LF007M1-QT-FZ is designed to prevent the backflow of polluted water from entering into the potable water supply due to back siphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards and for contaminants at the service line entrance. This assembly consists of a lead-free body construction, NPT end connections, quarter turn ball valve shutoffs, top mounted test cocks, two in-line independent positive seating check modules, captured springs, and replaceable check discs and seats. This valve includes include a freeze sensor for use with SentryPlus Alert technology to monitor temperature nearing the freezing point; Freeze sensor requires the additional Watts accessory kit # 88009429.