Simple Green OxySolve Total Outdoor Cleaner lifts and powers away dirt and stains from mold, mildew, moss and algae from a variety of outdoor surfaces such as wood, plastic, concrete, wicker, & metal. Uses peroxide to brighten without bleach. Pressure washer concentrate cleans up to 6,300 sq. ft. Fast-acting foam uses the power of peroxide to clean w/out bleach Removes oxidation and weathering on wood and composite Economical concentrate. Makes up to 21 gal of manual-use cleaner Can use around plants, lawns, pets or wildlife Lifts off tough dirt, grease and oils Unit: 1 Gallon / 3.78Liters