Various embodiments relate to a filter element. The filter element includes a first filter end, second filter end, filter media, and filter frame. The second filter end is disposed axially away from the first filter end. The filter media extends axially between a first filter end and a second filter end. The filter frame is adjacent to the first filter end. The filter frame includes a first frame end, a second frame end, a first frame endwall, a second frame endwall, a first frame sidewall, and a second frame sidewall. The second frame end is disposed axially away from the first frame end. The first frame endwall extends axially away from the first frame end toward the second frame end. The second frame endwall extends axially away from the first frame end toward the second frame end. The second frame endwall is disposed longitudinally away from the first frame endwall.