Zurn Wilkins 350ADABG - 2-1/2" Double Check Detector Backflow Preventer

The Zurn Wilkins 350ADA Double Check Detector Backflow Preventer is ideal for fire protection applications, with a metered by-pass to detect leaks and unauthorized water use.
Used in low health hazard applications.
2-1/2" double check detector assembly with grooved end butterfly valves with integral supervisory switches.
Short lay-length for small space installation.
Reliable performance and improved flow characteristics from patented compound check. Resilient wedge OS&Y gate valves standard.
Approved in horizontal and vertical positions.
Available in flanged, grooved, or grooved x flanged end connections for installation versatility.
No threads or taps in body or cover, eliminating exposure to corrosion.
Single access cover reduces maintenance down time.