Water filter device for purifying water comprises a depletion display for a water preparation agent provided in the filter path

摘要

Water filter device (1) comprises a depletion display (22) for a water preparation agent (17, 18, 19) provided in the filter path. Independent claims are also included for the following: (1) Water tank with a filter cartridge formed as the above water filter device; (2) Device with the above water tank; and (3) Filter device with a filter head for inserting a filter insert formed as the water filter device.