Patent ID: 8220640

Claim:
A replaceable filter cartridge for use with an outer shell comprising: a plurality of stacked disks of filter media extending between a first endplate and a second endplate; a plurality of frame members extending axially between and connected to the first endplate and the second endplate; a compression assembly between the first endplate and the plurality of stacked disks, the compression assembly including at least one compression member and a compression endplate acted on by the compression member and engaged with the plurality of stacked disks of filter media, the compression endplate is movable relative to the plurality of frame members in a direction toward the second endplate, and the compression member being positioned and configured to impart a compression force on said plurality of stacked disks of filter media via the compression endplate thereby biasing said plurality of stacked disks of filter media in an axial direction toward the second endplate; and the first endplate and the compression endplate are devoid of a fluid passageway.