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It is a ceramic filter which is characterized in that the plurality of main road is perpendicular to that of the purified fluid or the cleaning fluid flow path direction of the section shape is set by a pattern arranged in a row, at the door of the main road close to each other (the first specific main stream) the specific isolation between columns perpendicular to that of the purified fluid or the cleaning fluid flow path direction of the section shape, is surrounded by two separated form determined interval parallel line shape.

The first specific main flow path perpendicular to the purified fluid or the cleaning fluid flow path direction of the section shape, is formed by the specific department and by the next face the edge (reference edge) formed between the configuration of two parallel lines of heptagon or more polygons. And in the intersection at the two ends of the base side edge of second side and third side, one end connected to the second side and the base side in the opposite side is the intersection of the four, in the end and the third side and the reference side opposite side intersecting fifth edges, theta 1, 2, 3, theta theta theta theta 4 (among them, 1, 2, 3, theta theta theta 4 respectively representing the reference edge and the second edge angles (0 1), the reference edge and the third edge angles, angle (theta 2) the second and the fourth side of the angle (theta 3), the third side and the fifth side of the (0) 4) in the range of 110~160 deg. At the same time, the reference edge length (A) and the fourth side with the maximum distance of fifth edges (B) satisfy the relationship 0.3B = A = 0.7B.