FILTER SUPPORT TUBE AND METHOD OF THE PRODUCTION THEREOF

摘要

A filter support (40) includes a tubular construction that has flow apertures (60), a top edge (52), an opposite bottom edge (54), and first and second side edges (46, 48) extending between the top and bottom edges. The first and second side edges oppose each other to form a seam region (50) having a non-axial seam center line extending between the top edge and the bottom edge.