The Hydroflow K40 AquaKlear is designed for the effective management of pools, hottubs, spas, hydrotherapy pools, swim spas, ornamental ponds, water features, and other related applications. The K40 has a range of benefits that will make your system cheaper, easier to maintain, and more pleasant to use. Poor water quality (due to particulates or bacteria/algae in the water) increases the time and cost spent on maintenance, reduces efficiency and decreases your enjoyment of the system. The K40 will reduce maintenance time and costs, and increase the efficiency of the system.Improves water clarity