The 1-gallon Spray & Forget House & Deck Outdoor Cleaner with Nested Trigger Spray Bottle is your outdoor home improvement solution. Able to clean areas of 150-200 square feet, this convenient stain remover treatment works wonders as a multi surface mold and mildew stain cleaner. This powerful spray bottle cleaner works to clean brick, walls, decks, fences, driveways, walkways, siding and stucco. Enjoy outdoor entertaining? This is your outdoor patio cleaning solution. To use this outdoor cleaner hose sprayer, follow all directions carefully. First make sure that the surface to be treated is dry before application. Attach garden hose and fully turn on water source. Apply a thorough coat of Spray & Forget to affected areas to spray away stains, keeping the surface wet for as long as possible. Do not rinse. Once surface is clean, apply Spray & Forget every 24-36 months at the first sight of new staining. Keeps cleaning long after application!