Provides consistently great tasting water for point of use water coolers and drinking water systems by reducing sediment and chlorine taste and odor. Reduces parasitic protozoan cysts* and water-borne bacteria¹ using a 0.2 micron nylon membrane wrapped around carbon block media (models AP3-C762M, AP3-C1102M). Sanitary Quick Change (SQC) design allows for fast cartridge change-outs without a need for a filter wrench.