A TUBE-LIKE ELEMENT FOR USE IN A DUCT SYSTEM AND METHOD FOR MANUFACTURING.

摘要

The invention relates to tube-like element (100) for use in a duct system as filter holder. The tube-like element comprises a cylindrical wall component (102) which forms a duct (103). The cylindrical wall component comprises at least one oblong opening (104) configured to position a removable disc-shaped element (402) in the duct. Circular beads (106) in the cylindrical wall component form opposite longest edges (107) of the opening. The circular beads are configured to restrict movement of a removable disc-shaped element (402) that is positioned in the duct. The movement is restricted in axial direction of the duct.