PoolRx Minerals Technology is an EPA Registered Algaecide, that simplifies pool and spa care. PoolRx eliminates all types of existing algae fast, and prevents algae from coming back. PoolRx typically reduces chlorine demand by 50% and lasts up to 6 month! A PoolRx booster can be added, when needed for longer seasons, tough conditions, or larger pools. PoolRx supports any size body of water and is perfect for both residential and commercial use. PoolRx works with all types of chlorine and is great with Ozone, UV and Salt Systems too. Learn more at poolrx.com or call 1-800-3-PoolRx.