30 SECONDS Quart Outdoor Cleaner Ready to Use, cleans tough stains from algae, mold and mildew fast, without the need to Pressure wash. This effective, fast-acting outdoor cleaner can be used on a variety of surfaces including wood decks, concrete driveways, sidewalks, stucco, vinyl siding, brick walls and fences. If it's outdoors and dirty from all your humidity or wet weather, 30 SECONDS Outdoor Cleaner can clean it allÑand fast! Simply spray on and hose off to create a look like-new surface that's safe around plants and lawns.