Enhance Summer a is easy-to-use non-toxic 3 in 1 solution designed to provide you with cleaner, and healthier water. Enhance Summer Will: 1. Protect chlorine making it last up to 3 times longer. 2. Replaces the need for chlorine stabilizer (cynauric acid) 3. Replaces the need for water clarifies and polishers. 4. Helps to reduce red eye irritation, itchy skin and unpleasant odors. 5. Compatible with all sanitizes, filter systems and pool surfaces.