Reduced pressure zone (RPZ) valves keep contamination and pollution out of your water supply. Backflow preventers work by letting water flow through them in one direction, but prevent water from flowing back. An RPZ provides the best level of protection because it has a built-in relief valve, which will open up and evacuate any backflowing water.

The Department of Health and Illinois Plumbing codes require annual testing of RPZ valves and are essential to insure that your home water supply, as well as the municipal water supply, are protected. 

Classic Plumbing & Air is one of the only certified assembly testers in our service area. Call us today to schedule installation or annual maintenance. We'll even do the paperwork for you!!