The risks to drinking water quality from backflow contamination incidents pose a constant threat—whether they’re nuisance, non-health hazards, or serious public health events. Plumbing codes mandate that potable water supplies be protected against backflow at all cross-connections. We offer the largest selection of backflow prevention solutions for any application. Watts offers the broadest range of devices from 10” Reduced Pressure Zone Assemblies to hose bibb vacuum breakers. They have any type of valve you may need with the options you want. Watts backflow preventers are trusted by specifying engineers to protect the systems they design.