Cuprinol Decking Cleaner is a powerful detergent specially formulated to remove dirt and grease and kill algae and mould. It also sterilises the surface of the deck to protect against regrowth. The special formulation also makes this the perfect cleaning product for patios and stonework. Ideal for preparing decks before oiling or staining. Application type: brush or bristle brush. Pack size: 2.5 litre