Watts LF709-DNRS-IOT 4 - Part of the LF709 Series ZC100F-6NH a fixed 12¾″ × 12¾″

a fixed 12¾″ × 12¾″ square top with a heel-proof ductile-iron grate

ZB415S-3IP

This 3/4 inch lead free dual check valve backflow preventer with atmospheric vent prevents the reverse flow of hot or cold polluted water from entering into the potable water supply

Its white porcelain-enameled cast iron bowl provides a durable

Watts LF709-DNRS-IOT 4 - Part of the LF709 Series ZC100F-6NH a fixed 12¾″ × 12¾″This 4 inch lead free double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. Its compact modular design facilitates easy maintenance with a single access cover for in line repairs. Ideal for protection in continuous pressure piping applications and at cross connections identified as non health hazards. This assembly