Water Filters are used to enhance the taste and cleanliness of tap and well water. Although filters are engineered to remove potential pollutants, contaminants and microorganisms, their construction - small pockets and crevices that can trap nutrients - can make them perfect places for microbe growth. Ironically, filters can add to the microbe content of the water. This can mean reduced flow due to biofilm, raised microbe counts in the water, or unpleasant taste and odor.Some of the Benefits Include:Reduced Biofilm GrowthImproved FlowLonger Filter LifeImproved Taste, Odor and appearance5 Micron: Normal Household usage