Scotts Outdoor Cleaner Plus OxiClean Concentrate is great for large outdoor cleaning projects. It uses Fast-Foaming Action that starts working on contact to lift dirt and wipe out stains from Moss, Mold, Mildew and Algae and more. Also, Scotts Outdoor Cleaner Plus OxiClean is safe to use around lawns and plants, plus it will not damage fabrics. Even better Scotts Outdoor Cleaner Plus OxiClean can be used in Power Washers, unlike other outdoor cleaners. The outdoor cleaner is incredibly versatile and can be used on a variety of surfaces such as: concrete, wood, siding, patio furniture, outdoor fabrics, flower pots and more! 1 Gallon of Concentrate makes up to 10 Gallons of cleaner!