Spa Choice 472-3-5081-02 Chlorine Granules for Spas and Hot Tubs, 5-Pound, 2-Pack

Choose from the available size options. Controls algae and kills bacteria. Stabilized to protect against UV rays. Provides quick-dissolving chlorine. 56% available chlorine. Quick-dissolving Spa Choice Spa Sanitizing Granules provide a steady source of chlorine to control algae growth, kill bacteria, and destroy organic contaminants in the water. This is a great, easy-to-use solution for your cloudy spa or hot tub. Your water never looked so clear!