30 SECONDS Outdoor Cleaner cleans stains from algae, Mildew from anything outdoors. 30 SECONDS Outdoor Cleaner can be used on a variety of surfaces; wood decks, concrete driveways, sidewalks, stucco, vinyl siding, brick walls, plastic outdoor furniture, you name it. If it’s outdoors and dirty from humidity and wet weather, 30 SECONDS can clean it all. No noisy Pressure Washer imply spray on and hose off. Safe around plants and landscaping.30 SECONDS Outdoor Cleaner for Stains from Algae, Mold and Mildew 1 GallonThe Original and Still the Best Outdoor Cleaner Since 1977Cleans Stains from Algae, Mold & Mildew and Wipes Out Dirt & GrimeNo Pressure Washer, Simply Spray On and Hose OffSafe Around Plants, Lawns & LandscapingClean Everything Outdoors, from Your Home to A Garden GnomeFast Acting, Rapid ResultsWon’t Stain Concrete, Non-Corrosive to Metals When Used as Directed1 Gallon Concentrate Cleans 200 – 600 SQ. Feet Depending on Porosity of Surface1 Gallon ; 10 lb.Condition: New