This device helps prevent build-up of limescale, reducing the need to use chemical descaler and providing you with softer laundry and brilliantly clean crockery. The device prolongs the life of your domestic appliances and saves energy. Internal neodymium magnets create a powerful magnetic field that breaks down calcium carbonate crystals. The by-product of aragonite is dispersed in the discharge water. Completely ecological, does not change its organoleptic properties of the water.