The 8" 375ADA Reduced Pressure Detector Backflow Assembly is utilized in high health hazard and fire protection applications, protecting against both backsiphonage and backpressure of contaminated water into the potable water supply. The black fusion epoxy-coated ductile iron body and access covers offer corrosion resistance. The incorporated metered bypass system saves you money by detecting leaks and any unauthorized water use in fire lines. The 375ADA comes standard with OS&Y flanged end connection gate valves.