NaturAqua 28 g (1 Week Shot) NaturAqua All in One Water Clarifier, Ecological pool treatment, pH Stabilizer, Controls Algaes, Chlorine Use Reducer,10.6 oz. 10.6 oz. can last in a domestic pool up to 6 months!!! (Depending on volume of water). Perfect for Domestic and Commercial Use.  Experience the Feel of the Most Soft and Pristine Water Youve Ever Touched as if it was purified by Mother Nature. NaturAqua All in One Is a Natural and Ecological Treatment for a superb Swimming Pools, SPAs, and Artificial Lakes enhanced water quality. Made with Mineral Salts, trap in to the filtration system all Organic Matter, Pollutants, Oils and Grease, Algae, Fungi, Virus and Bacteria present in Water, avoiding use of all chemicals used and is a Chlorine Use Reducer.  Your Whole Body, Family, and Children Will Thank You For It. Maintain your Swimming Pool as Clear and Clean as Spring Water.  Replace All Chemicals Using Only NaturAqua All in One and Minimum Chlorine. Perfect for Domestic and Commercial Use.  Experience the Feel of the Most Soft and Pristine Water Youve Ever Touched as if it was purified by Mother Nature.