Windex® Outdoor Glass & Patio Concentrated Cleaner is the easy way to clean and shine windows, patio furniture, brick, decks, play sets, siding and other outdoor surfaces with no dull residue left behind! Won’t harm plants, siding or synthetic decks. The specially designed spray bottle conveniently attaches directly to your garden hose. Just spray, rinse, and let dry to clean stubborn dirt and grime outside your business, leaving behind only our famous streak-free shine.