► HIGHEST QUALITY FILTRATION - The activated carbon in K&J's Maytag Filter 4 replacement is ground ultra-fine to increase surface area exposure to water, removing more contaminants using the same amount of filter space. This results in the cleanest-tasting, purest water. ► EXTRACTS CONTAMINANTS - K&J ensures the highest standard of contaminant retention, including filtering out 99.99% of chlorine and sediment. WQA and NSF 42 and 372 certified. ► IMPROVES WATER TASTE - In addition to keeping you safe from unwanted chemicals and particulates, this filter is designed to even remove off-flavors and odors. There is nothing quite like the taste of 100% pure water!