Filter system for removing impurities from a fluid, - having a filter housing which encloses a housing interior and comprises a base and a lid - having at least one cylindrical filter body which is arranged in the filter housing and separates an untreated chamber from a clean chamber in the housing interior, - each filter body comprising at least two cylindrical filter elements that are designed as identical components - a feed device for backflushing the filter body being provided with a flushing medium, - the feed device comprising a feed body arranged at the clean side in the filter housing for feeding the flushing medium to a filter surface, facing the clean side, of the filter body, - the feed body comprising a feed element for each filter element, which feed elements are each formed as identical parts and each of which, in the case of an associated filter element, feeds the flushing medium to the filter surface facing the clean side, characterised in that - the filter elements are joined together axially, - each filter element comprises a casing and two annular bodies (18, 19) each arranged on an axial end of said casing, in particular a base-end annular body facing the base and a lid-end annular body facing the lid, respectively, which annular bodies are configured as mutually complementary flanges which allow one filter element to be fixed, via the base-end annular body thereof, to the lid-end annular body of the other filter element, - the filter body comprises on its axial ends a base-end end body facing the base, and a lid-end end body facing the lid, which elements are fixed to different filter elements, - the base-end annular bodies of the filter elements and the base-end end body of the filter body form mutually complementary flanges, - the base-end end body is fixed to the base-end annular body of a filter element arranged at the base end, - the lid-end annular bodies of the filter elements and the lid-end end body of the filter body form mutually complementary flanges, - the lid-end end body is fixed to the lid-end annular body of a filter element arranged at the lid end, and - the feed elements are connected together axially. - having a filter housing which encloses a housing interior and comprises a base and a lid - having at least one cylindrical filter body which is arranged in the filter housing and separates an untreated chamber from a clean chamber in the housing interior, - each filter body comprising at least two cylindrical filter elements that are designed as identical components - a feed device for backflushing the filter body being provided with a flushing medium, - the feed device comprising a feed body arranged at the clean side in the filter housing for feeding the flushing medium to a filter surface, facing the clean side, of the filter body, - the feed body comprising a feed element for each filter element, which feed elements are each formed as identical parts and each of which, in the case of an associated filter element, feeds the flushing medium to the filter surface facing the clean side, characterised in that - the filter elements are joined together axially, - each filter element comprises a casing and two annular bodies (18, 19) each arranged on an axial end of said casing, in particular a base-end annular body facing the base and a lid-end annular body facing the lid, respectively, which annular bodies are configured as mutually complementary flanges which allow one filter element to be fixed, via the base-end annular body thereof, to the lid-end annular body of the other filter element, - the filter body comprises on its axial ends a base-end end body facing the base, and a lid-end end body facing the lid, which elements are fixed to different filter elements, - the base-end annular bodies of the filter elements and the base-end end body of the filter body form mutually complementary flanges, - the base-end end body is fixed to the base-end annular body of a filter element arranged at the base end, - the lid-end annular bodies of the filter elements and the lid-end end body of the filter body form mutually complementary flanges, - the lid-end end body is fixed to the lid-end annular body of a filter element arranged at the lid end, and - the feed elements are connected together axially.