Filter, used as filter cartridge, comprises filter element having central channel containing middle pipe which extends between lid and base

摘要

Filter comprises a filter element (2) connected on a front side (3) to a lid (5) and on a further front side (4) to a base (6). The filter element has a central channel (25) containing a middle pipe (8) which extends between the lid and the base. The middle pipe has a variable length in the direction of its longitudinal axis (10).