A filter element configured to be positioned within an internal volume of a shell housing, the filter element comprising: filter media ; and a first end cap coupled to a filter media first end of the filter media, the first end cap comprising: a base , a first axial sidewall extending from the base towards the filter media, the first axial sidewall positioned inwardly from an outer edge of the first end cap, a second axial sidewall extending from the outer edge of the base towards the filter media and spaced apart from the first axial sidewall, the filter media first end positioned between the first axial sidewall and the second axial sidewall, a first end cap flange positioned about a periphery of the base, the first end cap flange extending from the base away from the filter media, and a protrusion extending from at least a portion of the first end cap flange away from the second axial sidewall, the protrusion configured to engage with a ledge of the shell housing so as to limit insertion of the filter element into the internal volume defined by the housing beyond a predetermined distance, wherein the first end cap flange and the protrusion form part of a U-shaped channel that receives a first end sealing member . filter media ; and a first end cap coupled to a filter media first end of the filter media, the first end cap comprising: a base , a first axial sidewall extending from the base towards the filter media, the first axial sidewall positioned inwardly from an outer edge of the first end cap, a second axial sidewall extending from the outer edge of the base towards the filter media and spaced apart from the first axial sidewall, the filter media first end positioned between the first axial sidewall and the second axial sidewall, a first end cap flange positioned about a periphery of the base, the first end cap flange extending from the base away from the filter media, and a protrusion extending from at least a portion of the first end cap flange away from the second axial sidewall, the protrusion configured to engage with a ledge of the shell housing so as to limit insertion of the filter element into the internal volume defined by the housing beyond a predetermined distance, wherein the first end cap flange and the protrusion form part of a U-shaped channel that receives a first end sealing member . a base , a first axial sidewall extending from the base towards the filter media, the first axial sidewall positioned inwardly from an outer edge of the first end cap, a second axial sidewall extending from the outer edge of the base towards the filter media and spaced apart from the first axial sidewall, the filter media first end positioned between the first axial sidewall and the second axial sidewall, a first end cap flange positioned about a periphery of the base, the first end cap flange extending from the base away from the filter media, and a protrusion extending from at least a portion of the first end cap flange away from the second axial sidewall, the protrusion configured to engage with a ledge of the shell housing so as to limit insertion of the filter element into the internal volume defined by the housing beyond a predetermined distance, wherein the first end cap flange and the protrusion form part of a U-shaped channel that receives a first end sealing member . <EOS>