Pureline Crystal Pure Salt System, Universal Pool Salt Chlorination System, Includes Control Panel, Salt Cell, 20,000 Gallon The PureLine Crystal Pure Salt System makes the process of chlorinating the pool a breeze for you. When your pump runs, you will be producing chlorine, ensuring a steady dose into your pool water. The more consistent your chlorine levels are in your pool, the fewer chemicals you will use overall. Free yourself and your pool guests from the itchy, dry feeling of regular chlorine. With a saltwater chlorine generator, the water feels smooth and won't leave a white residue on your skin. The Crystal Pure generator cell easily plumbs in-line and has quick disconnect unions for easy access