The activated carbon is of a granular type, of different sizes, selected for high capacity water treatment. The head is a timer, which means that when the preset time reaches, washing begins to restore the filter medium contained in its original state. The filtering medium is periodically rinsed by reverse washing using water rather than chemicals. There is a bypass adjustment on the head, which guarantees the supply of water to be treated during rinsing. All parts of the filter are non-toxic, suitable for drinking water and long-term use. FCA filters are connected in series with the water supply system after any pressure or before a tank. The head is made of NSF-certified NORYL® material and the polyethylene container enriched with fiberglass and epoxy resin for increased durability.