The Fleck 5600 is one of America’s favorite and best residential water softener systems on the market today. The Fleck SXT Controls provide easy, step-by-step programming at the touch of a button. The same SXT control drives 6 different Fleck valves, saving you time in installation, service and training. A large backlit LCD display alternates between time of day, soft water remaining or days to regeneration, and regeneration cycle in process. Fleck valves using an SXT control is economical, low power consumption and easily replaceable components making it the best entry-level solution for all your residential water treatment applications.