HTH Chlorine Granules Ultra 5LB

HTH Pool Care Chlorine Granules Ultra 5 lb (was formerly known as HTH Ultimate Mineral Brilliance Chlorinating Granules). Get the ultimate in pool care convenience with this all-in-one Cal Hypo formula. It sanitizes, controls algae, clarifies, softens pool water and even prevents stain and scale to keep your pool clean, clear and ready for summer fun.