Patent ID: 8080159

Claim:
A filter cartridge for filtering fluid comprising: an annular full flow filter media extending axially between a first end and a second end and having an interior cavity defined therebetween; a reinforcing member positioned within the interior cavity and extending axially at least substantially between the first end and the second end, the reinforcing member including a plurality of axially spaced apart connecting segments; a bypass tube positioned within the interior cavity radially inward from the reinforcing member; a plurality of substantially axially extending ribs connecting the reinforcing member to the bypass tube, the ribs and the connecting segments defining a plurality of flow apertures in the reinforcing member; and a bypass filter media including a plurality of stacked disks extending between a top end and a bottom end, wherein each disk includes an aperture, the apertures in adjacent disks overlapping one another to define a channel extending between the bottom end and the top end; wherein the bottom end of the channel is positioned adjacent the bypass tube to define a flow path therebetween.