Stauff RE 030 S 25 B 2 NB Montagestrip 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 Inner Diameter (mm): 94 Length (mm): 514 Sealing: NBR H1220813 202400 PF3224 1202339 5 Inner Diameter (mm): 22 β ratio >2