MasterCare PRO-GREEN Coil Cleaner is a no-rinse, mild alkaline coil cleaner designed for air-cooled condensers, evaporators, electronic and permanent filters, fan blades, grilles, mini-split and microchannel applications. Pro-Green cleans deposits on coils and rids condensate pans of slime. 1 gallon makes 4 gallons of coil cleaner.