Patent ID: 8419938

Claim:
A filter element comprising: a sleeve defining an interior space and a sleeve axis; a filter medium surrounding the sleeve; and an endcap attached to the sleeve, the endcap including: a first member extending across the filter medium; a sidewall substantially perpendicular to the first member and extending in a first direction to a bottom surface; an outer wall spaced apart from the first member and substantially parallel to the sleeve axis, the outer wall extending in a second direction away from the filter medium and opposite to the first direction; and a plurality of arms extending from the sidewall to the outer wall, the arms and the sidewall and the outer wall defining apertures in the endcap, each arm including a fin portion extending in the first direction, the fin portion having first and second bottom surfaces that together form a first reflex angle, wherein the first bottom surface of the fin portion is spaced, in the second direction, away from the bottom surface of the sidewall.