A backflow preventer assembly designed to stop polluted water from entering potable water supplies, featuring a cast iron body, gate valves, test cocks, check valves, springs, and an internal relief valve.

A backflow preventer assembly similar to the LF009-NRS model, designed to prevent contaminated water from entering potable water systems, with a cast iron body, gate valves, test cocks, check valves, springs, and an internal relief valve.