• Bronze body Furnished with a gallon per minute meter Non-health hazard application No special tools are required for servicing

This 2 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross-connections identified as non-health hazards such as on fire protection systems and from other contaminants found at the service line entrance. This compact modular design with a single access cover for easy maintenance is approved for horizontal and vertical flow up installation. It consists of a bronze body, captured spring check valves, right-hand close gear operated slow close isolation valves, two pre-wired tamper switches, and four test cocks. It comes with a gallon per minute meter to detect underground leaks and unauthorized water use.