The OxySplash Enhanced Non-Chlorine Shock is a fast acting shock product that can be used in both pools and spas. This product lasts longer than most, because it is highly concentrated, and allows you to apply smaller dosages. Quickly remove odors and contaminations. This product works so quick, you can swim in as little as 15 minutes after the application. It is compatible with systems including salt, chlorine, bromine, ozone, UV, and mineral programs. Regular use of the OxySplash product will reduce the demand on your sanitizer, and overall make your pool and spa systems easier to maintain.