Sani Marc Summer Smiles 30-07270-01 1L Klean Multi All Purpose Cleaner is a biodegradable cleaner that instantly dissolves all kinds of grease, dirt and water marks on vinyl pool and spa surfaces. Its fast-acting cleaning power makes cleaning quick and easy. Klean Multi can also be used on garden furniture, resin-coated surfaces, pool walls, vinyl-coated metal parts, chrome and vinyl siding.