Makes tap water taste great. Now eliminates 99% of lead. Reduces chlorine, bad tastes, and odors. Prevents bacteria growth in the filter due to water hardness. Ideal for families. Convenient 1-touch dispensing. Rectangular tank fits easily on refrigerator shelves and countertops. 144 oz. (18 - 8 oz. glasses) capacity. Certified by (NSF) National Sanitation Foundation. Includes: 1 filter and 1 filter change indicator. The electronic indicator contains a nonreplaceable sealed battery that is designed to last for approximately 5 years, depending on usage. Refer to model No. 35503 for replacement filter.