A filtration assembly including: at least one end cap (30, 130, 230) having a cavity defined therein (32, 132, 232), wherein the end cap (30, 130, 230) includes an annular inner wall (34, 134, 234) and an annular outer wall (36, 136, 236) surrounding the inner wall, the inner and outer walls defining the cavity; a filter media having one end disposed in the cavity and secured to the end cap by a bonding agent; wherein the end cap includes an end wall (38, 138, 238) non-parallel to the inner and outer walls and axially spaced from ends of the inner and outer walls that receive the filter media, wherein the retainer (50, 150, 250) is positioned in the cavity in an axially spaced relationship to the end wall (38, 138, 238), thereby defining an undercut (60, 160, 260) in the cavity for receiving the bonding agent; and at least one retainer (50, 150, 250) mechanically locked to the end cap in the cavity and defining a region into which the bonding agent can flow to form a mechanical interlock with the retainer, wherein the at least one retainer has a body (52, 152, 252), and characterized in that the at least one retainer has a plurality of circumferentially spaced tines (54, 154, 254) projecting from the body to mechanically lock the retainer to the end cap, wherein either: (i) the plurality of circumferentially spaced tines (54, 154) project radially outwardly from the body and engage an inner surface of the outer wall (36, 136) of the end cap to secure the retainer to the end cap, wherein a pair of the circumferentially spaced tines (54, 154), the body (52, 152) of the retainer, and the inner surface of the outer wall (36, 136) define respective regions into which the bonding agent can flow; or (ii) the plurality of circumferentially spaced tines project radially inwardly from the body and engage an outer surface of the inner wall of the end cap to secure the retainer to the end cap, wherein a pair of the circumferentially spaced tines, the body of the retainer, and the outer surface of the inner wall define respective regions into which the bonding agent can flow; or (iii) the plurality of circumferentially spaced tines project radially outwardly from the body, at least one of the tines engaging an inner surface of the outer wall and an outer surface of the inner wall to secure the retainer to the end cap. at least one end cap (30, 130, 230) having a cavity defined therein (32, 132, 232), wherein the end cap (30, 130, 230) includes an annular inner wall (34, 134, 234) and an annular outer wall (36, 136, 236) surrounding the inner wall, the inner and outer walls defining the cavity; a filter media having one end disposed in the cavity and secured to the end cap by a bonding agent; wherein the end cap includes an end wall (38, 138, 238) non-parallel to the inner and outer walls and axially spaced from ends of the inner and outer walls that receive the filter media, wherein the retainer (50, 150, 250) is positioned in the cavity in an axially spaced relationship to the end wall (38, 138, 238), thereby defining an undercut (60, 160, 260) in the cavity for receiving the bonding agent; and at least one retainer (50, 150, 250) mechanically locked to the end cap in the cavity and defining a region into which the bonding agent can flow to form a mechanical interlock with the retainer, wherein the at least one retainer has a body (52, 152, 252), and characterized in that the at least one retainer has a plurality of circumferentially spaced tines (54, 154, 254) projecting from the body to mechanically lock the retainer to the end cap, wherein either: (i) the plurality of circumferentially spaced tines (54, 154) project radially outwardly from the body and engage an inner surface of the outer wall (36, 136) of the end cap to secure the retainer to the end cap, wherein a pair of the circumferentially spaced tines (54, 154), the body (52, 152) of the retainer, and the inner surface of the outer wall (36, 136) define respective regions into which the bonding agent can flow; or (ii) the plurality of circumferentially spaced tines project radially inwardly from the body and engage an outer surface of the inner wall of the end cap to secure the retainer to the end cap, wherein a pair of the circumferentially spaced tines, the body of the retainer, and the outer surface of the inner wall define respective regions into which the bonding agent can flow; or (iii) the plurality of circumferentially spaced tines project radially outwardly from the body, at least one of the tines engaging an inner surface of the outer wall and an outer surface of the inner wall to secure the retainer to the end cap. (i) the plurality of circumferentially spaced tines (54, 154) project radially outwardly from the body and engage an inner surface of the outer wall (36, 136) of the end cap to secure the retainer to the end cap, wherein a pair of the circumferentially spaced tines (54, 154), the body (52, 152) of the retainer, and the inner surface of the outer wall (36, 136) define respective regions into which the bonding agent can flow; or (ii) the plurality of circumferentially spaced tines project radially inwardly from the body and engage an outer surface of the inner wall of the end cap to secure the retainer to the end cap, wherein a pair of the circumferentially spaced tines, the body of the retainer, and the outer surface of the inner wall define respective regions into which the bonding agent can flow; or (iii) the plurality of circumferentially spaced tines project radially outwardly from the body, at least one of the tines engaging an inner surface of the outer wall and an outer surface of the inner wall to secure the retainer to the end cap.