BioGuard Lo 'n Slo - 8lb.

BioGuard Lo 'n Slo (8lb) is a quick-dissolving granular formula designed to safely and effectively lower pool pH and total alkalinity. Its micro-granules help balance water chemistry, prevent scale and metal staining, and protect pool surfaces and equipment. Suitable for use with all pool types, Lo 'n Slo keeps water comfortable for swimmers and improves chlorine efficiency.