(12) 20 oz. Cans. Quaternary Ammonium Chloride hygienic coil cleaner designed to purify the coil as it cleans. Opens up restricted air flow due to build up in the coil surface, advance heat transfer, reduce head pressure and optimizes system capacity. Use on evaporator coils and condenser coils. Promotes Heat Transfer and optimizes system capacity. Cleans and deodorizes. Enhances IAQ.