While TimberTech decks are designed to battle the elements, spills still happen. Dust, debris, and pollen can build up on the surface with regular foot traffic. TimberTech Deck Cleaner is an effective formula that makes cleaning a breeze for small spots or entire deck surfaces. Versatile - works well for cleaning an entire deck or for spot treatment on stubborn spills and stains. Concentrated - when properly diluted, a single 1 gallon bottle yields 4 gallons of cleaner to clean approximately 1,000 square feet of surface area. Clean your deck with a biodegradable formula. Specially Formulated - this effective formula was created specifically for TimberTech AZEK, PRO, and EDGE Capped Decking, Porch, and Railing. It is guaranteed not to damage products or compromise warranties when used as directed. Also can be used for DrySpace and Pavers