A honeycomb body of ceramic material for use in installations for cleaning and/or regenerating gases, comprising a prismatic body, which is penetrated by many rectilinear gas-flow channels parallel to one another, which discharge into both face ends of the honeycomb body, wherein the honeycomb body (1) has at least one tubular recess (5, 5′), which is oriented transversely to the direction of the flow channels (4).