NEW & IMPROVED NOZZLE! Wet and Forget Outdoor Cleaner with Xtreme Reach Hose End makes treating moss, mold, mildew, and algae stains quick and easy. Apply to an entire house, roof, driveway, or deck in minutes. The bottle attaches directly to your hose and the jet tip sprays up to 30 feet, allowing you to clean hard to reach areas like second story siding and roofs. The fan tips provides quick application to large surfaces like driveways and patios. Wet & Forget Outdoor goes to work with the wind and rain to gently clean the surface over time. Green stains generally clean up within a few weeks. Black stains or heavy stubborn stains may take 6-12 months to fully come clean. Be Patient, Good Things Take Time! Wet & Forget Outdoor contains no bleach and is safe to use on any type of deck, siding, roof, walkway, patio, brick, cement, or other outdoor surface. Wet & Forget Outdoor Xtreme Reach Hose End covers up to 2,000 square feet depending upon severity of the stain and porosity of the surface. Surfaces are likely to stay clean up to 1 year or longer. Repeat application yearly or when new stains appear