Acti-Brite is a concentrated, acid based, high-foaming outdoor condenser coil cleaner and brightener. It effectively foams away stubborn, “baked on” lint, smoke, film, insects, feathers, grass, leave sand other deposits from air cooled condenser coils. The expanding foam pushes contamination out of the coil and is easily rinsed away with water. In addition to removing contaminants, the Acti-Brite formula effectively restores efficiency and reduces operating cost by removing hidden oxidation from the coil surfaces.