SMF (Metal filter) is constructed from fine-woven stainless steel wire meshes with higher void space. It has also employ extremely micro diameter stainless steel fibers, resulting in high void volume media with increased dirt holding capacity and long life. Sintered wire meshes produce an extremely strong porous material whose wire will not shift under stress and whose pore size integrity is continually maintained. This style filter cartridge give outstanding performance especially in the removal of gel contaminants in high molecular polymer.