Universal round profile filter cartridge for Aquaphor water filter jugs and other standard classic jugs. Removes virtually all harmful impurities from tap water, improving its color, taste, and odor. Scientists from the Aquaphor research and development team have designed Aqualen, a unique patented technology for water purification. B100-15 filter cartridges feature Aqualen, as well as coconut shell activated carbon and silver ions. A single Aquaphor jug cartridge can purify 170 liters of water, which is on average twice as much as other similar cartridges.