Abstract: A chromatography device (201; 201?) comprising: – at least one chromatography material unit (203), wherein said chromatography material unit comprises a convection-based chromatography material and is of a substantially rectangular shape having a length (L) and a width (W); - at least one fluid distribution system (207) which is configured to distribute fluid into and out from the at least one chromatography material unit (203), wherein said fluid distribution system (207) comprises a distribution device (209a) and a collection device (209b) between which said chromatography material unit (203) is sandwiched, wherein said distribution device (209a) and said collection device (209b) each comprises a number of parallel grooves (255) for distribution and collection respectively of a fluid to be passed through the chromatography material unit (203), wherein said parallel grooves are reaching over substantially the whole length (L) of the chromatography material unit (203) and are distributed over substantially th

Abstract: A chromatography device (1; 101) comprising: —at least one chromatography material unit (3), wherein said chromatography material unit comprises a convection-based chromatography material; —at least one fluid distribution system (7) which is configured to distribute fluid into and out from the at least one chromatography material unit (3); —an inlet (15); —at least one inlet fluid channel (17a, 17b) connecting the inlet (15) with each chromatography material unit (3) via the fluid distribution system (7); —an outlet (19); and —at least one outlet fluid channel (21) connecting the outlet (19) with each chromatography material unit (3) via the fluid distribution system (7), wherein at least some parts of said chromatography device (1; 101) are overmolded and sealed together by plastic or elastomer leaving at least the inlet (15) and the outlet (19) open.