Water softening system Tempotrol - timed Automatic, time-controlled water softening system Water softening system Valotrol - quantity controlled Automatic, volume-controlled water softening system Water softening system Sotrol - sensor-controlled Automatic, sensor-controlled water softening system Water softening system Penotrol Pendulum softening system according to the ion exchange method Pendulum Menotrol G / GV with frame - quantity controlled Automatic, volume-controlled water softening system Water softening system compact K 40 to K 60 W - volume controlled Automatic, volume-controlled water softener for the softening of raw water Water softening systems Autotrol - volume controlled Automatic volume-controlled water softening system according to the ion exchange method for irregular removal of soft water