Patent ID: 8177976

Claim:
A filter cartridge comprising: (a) a primary filter cartridge section comprising media surrounding a central volume and defining a central axis; (b) a bypass filter cartridge section including media surrounding a central volume and defining a central axis; (c) a first end cap positioned between the primary filter cartridge section and the bypass filter cartridge section; (i) the primary filter cartridge section and the bypass filter cartridge section each being secured in the filter cartridge; (ii) the first end cap being an open end cap; (d) a seal support surrounded by the media of the bypass filter cartridge section; (i) the seal support including a first inner seal member defining a first inwardly directed seal; the first inwardly directed seal being positioned in a slanted seal plane non-orthogonal to the central axis of the bypass filter cartridge section; and, (e) a second end cap positioned at an opposite end of the primary filter cartridge section from the first end cap; (i) the second end cap being an open end cap and including a tubular, axial, projection and having a radially outer surface; and, (ii) a housing seal member positioned around the radially outer surface of the tubular extension of the second end cap.