ComStar's All Coil Cleaner is the universal cleaner that does it all. It cleans, renews, and brightens condenser coils, metal fan blades, air registers, evaporator coils, and all other metal parts. All Coil Cleaner removes grease, grime, dirt, oxidation, and eliminates unwanted odors as well. Its non-acid, mild alkaline formula is safe on aluminum and copper. All Coil Cleaner's unique cleaning solution is eco-friendly,biodegradable, and non-toxic. Depending on the amount of foaming action and level of cleaning required, All Coil Cleaners can be diluted with 1 to 3 parts water.