Unger Professional EasyGlide Glass Cleaner professional window cleaning formula removes tough dirt and leaves no film, foam, or streaks. It features a biodegradable formula for environmental friendliness, is non-toxic, and won't irritate your skin. The concentrated liquid will make about 25 gallons of solution when mixed with water. Professionals and consumers look to our cleaning tools for quality and durability. Unger guarantees to replace any Unger Professional branded product found defective in material, construction, or workmanship.