MasterCare™ TRIPLE-D is a universal, medium-duty coil cleaner. It’s low foaming, alkaline detergent is metal safe and fin friendly, and is microchannel and mini-split safe. Use this coil cleaner indoor or outdoor to degrease and deodorize condensers and evaporators. 1 gallon makes 7 gallons of coil cleaner. Diversitech Triple D™ Coil Cleaner, Universal Concentrate, 1 gal, Liquid, Lavender, Composition: Sodium Silicate, 1.19 Specific Gravity, Clear Orange