Pro-Red+ is fast acting cleaning solution for condensers, micro-channels and mini-splits that foams and lifts away stubborn deposits including tarnish and corrosion. It's non-acid formula is as effective as conventional acid cleaners without the use of hydrofluoric acid. The vigorous foaming action eliminates the need for prolonged soaking, steam cleaning or scrubbing coils without emitting corrosive fumes or rusting ferrous metals.