The H2O Benelux devices (1 filter + 1 dynamizer) are placed just after the water meter and transform the tap water into pure and dynamized water for the whole family and house (drinking water, coffee, tea, showers, baths, cooking …)! These devices transform the structure of limestone from calcite into aragonite, which considerably reduces limescale problems. No need anymore for a water softener. No need for softener.