poolife MPT Extra Pool Algae Chemical Controllers, 21 lbs

poolife MPT Extra Pool Algae Chemical Controllers, 21 lbs Proprietary and patented 4-in-1 formula for effective pool maintenance 3-inch chlorine tablets that sanitize and prevent algae growth Helps to prevent staining and scaling in pool water Enhances clarity and softness of pool water Compatible with chlorine floaters, feeders, or skimmers Sun protected to extend the life of chlorine in your pool