AQUA BLUE Replacement Filter Cartidge | Premium Refrigeater Water Filter 3 (One Pack) High grade carbon block, that removes over 99 percent of numerous potentially harmful contaminants which may be present in your water. This water filter housing is for refrigerators Brand New in Original Retail Packaging Retains beneficial minerals to produce healthy drinking water Use activated carbon to reduces chlorine taste, odor, sediment, dirt, rust, turbidity, heavy metals and harmful sediments. At the same time, does not remove beneficial minerals.