Profile: Febco MasterSeries® features the broadest, most versatile line of backflow prevention assemblies on the market. Our patented N shape design is preferred by designers, engineers and municipalities. We manufacture backflow preventers and automatic sprinkler systems for the irrigation industry. Backflow prevention devices help protect the public safety by preventing potable water contamination in such critical areas as municipal water systems, food processing plants, medical and dental water supplies and many industrial applications.