For large volumes of water, suitable to fit all the latest refrigerator doors, the water filter improves the quality of tap water and provides clear, clean water to be used for tea, coffee, cooking and tasty drinking water, it avoids scale built-up in household appliances, i.e.coffee machines and irons, The water filter reduces heavy metals, such as lead, copper, and zinc, as well as chlorine, water hardness, organic pollution and pesticides.