A combination of sediment filter (5 micron) and activated carbon media set in a resin. When choosing a carbon water filter, the decision must be made between an activated carbon water filter and a carbon block water filter. Since the activated carbon attracts negatively charged contaminants- like chlorine, benzine and cancer causing chemicals–and the block carbon provides the most effective filter, the water filter should be the activated carbon block water filter. Since activated carbon block is not as effective at removing sediment, a filter containing the activated carbon block also contains another filter substance to reduce sediment. These multilevel filters are best.