Filter with a replaceable filter element having a locking member

A filter, comprising:

• a filter housing (10);
• and
• a replaceable filter element (12) disposed in the filter housing (10) and having annular upper and lower closure members (12a, 12b) and an interior space, wherein the filter housing (10) forms a housing pot (10a) having a fluid inlet (10e), a fluid outlet, and an opening (10b) for insertion of the filter element (12);
• a support tube (16) extending in the interior of the filter element (12) and connected to a bottom of the filter housing (10);
• and
• a locking member (14) adapted to engage the support tube (16) such that rotation of the locking member (14) will provide a force that will push the filter element (12) into the housing pot (10a) and hold the filter element (12) in the housing pot (10a) or will pull the filter element (12) out of the housing pot (10a);
• wherein the filter element includes a radially inner sealing lip (12p) which projects obliquely in a direction facing the bottom of the housing pot (10a) and bears against a cylinder-jacket-shaped wall structure (10i) on the bottom of the housing pot (10a), and wherein the wall structure (10i) has a run-up slope on its radially outwardly oriented side.