Clear2O CWF1014-4 Replacement Water Filter, 4 Pack Fits CWS100AW, CWS100A, CWS100A2 Certified Reduces Asbestos,Cadmium, Cysts, Lead, Mercury, Turbidity, VOCS, Chlorine, Nominal Particulate Reduction, Class I. BPA Free Solid Block Carbon One Filter Cleans 50 Gallons That's Over 88 Pitchers