Stauff SPAL 5038 PP DPAL AS M W4 Signaalomvormers Glass Fibre Outer Diameter (mm): blank filter Element Glass Fibre Outer Diameter (mm): 150 Inner Diameter (mm): 89 Length (mm): 204 Clamp Assembly Heavy Series Size 9S Ø168mm Aluminium W18 Safety Plate Hex Head Bolt Weld Plate Clamp Assemblies Heavy Series Size 5S Ø38mm Polypropylene W4 Cover Plate