CPC B01D 35/153 (2013.01) [B01D 29/15 (2013.01); B01D 35/143 (2013.01); B01D 35/1573 (2013.01); B01D 2201/167 (2013.01); B01D 2201/291 (2013.01); B01D 2201/295 (2013.01); B01D 2201/302 (2013.01); B01D 2201/4046 (2013.01); B01D 2201/4076 (2013.01)] | 10 Claims |
1. A filter cartridge being selectively removably mounted within a filter bowl; the filter cartridge comprising:
(a) a filter media construction defining a central axis and having a central open volume and first and second ends;
(b) a first end cap on the first end of filter media construction;
(i) the first end cap having a periphery and a plurality of radial projections thereon; the radial projections being at a radially outermost portion of the periphery of the first end cap;
(ii) the radial projections being centering structure positioned to center the filter cartridge within the filter bowl;
(c) the first end cap having an axial stem; the axial stem having a central conduit therethrough, in communication with the central open volume of the filter media construction;
(i) the axial stem including a portion projecting away from the filter media construction;
(ii) the axial stem including an outer seal member thereon;
(iii) an end of the axial stem remote from the filter media construction comprising a plurality of circumferentially spaced axial projections, each axial projection having a free end that is narrower at the free end than at a region closer to the filter media construction; and
(iv) a depression between each of the axial projections; and
(d) a second end cap secured to the second end of the filter media construction.
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