Stauff SE 008 G 10 B 4 Stauff Replacement Filter Element for Return Line blank filter Element Replacement Filter Element for Return Line Filters Micron Rating: 10 µm Material: Filter Paper Outer Diameter (mm): 142 Union Nut Tube OD and Series: 38 S Steel Glass Fibre Outer Diameter (mm): 35 Inner Diameter (mm): 12 β ratio >200