Patent ID: 8617404

Claim:
A filtered fluid conduit stock from which a filtered fluid conduit to be used as part of a fluid filter is cut, said filtered fluid conduit stock comprising: a plurality of holes along a longitudinal conduit channel portion, at least two of said plurality of holes having a first shape configured for snap engaging end caps during fluid filter operation, and at least two other of which are exclusively fluid conveyance holes that pass channeled, filtered fluid from outside of said filtered fluid conduit to a conduit interior during said fluid filter operation; wherein said longitudinal conduit channel portion forms an inner channel wall of a channel created when a filter medium roll tube of a filter medium roll is established around said filtered fluid conduit, wherein said filtered fluid conduit has at least one remaining longitudinal conduit portion that is distinct from said longitudinal conduit channel portion and that does not form said inner channel wall, said at least one remaining longitudinal conduit portion defining, in a radial plane that is perpendicular to a conduit longitudinal axis, a conduit center, and having, in said radial plane, an outer radius, and wherein said longitudinal conduit channel portion has, in said radial plane, a cross-sectional profile with an outer edge that is furthest from said conduit center, all points of said outer edge having a distance from said conduit center that is less than said outer radius, said apparatus further comprising: filtered fluid conduit length cut guides established on said filtered fluid conduit stock, wherein said at least one of said holes of said first shape that engages said end cap during said fluid filter operation is proximate one of said filtered fluid conduit length cut guides, and wherein said filtered fluid conduit length cut guides facilitate cutting of said filtered fluid conduit stock to particular lengths for different applications requiring differently sized filtered fluid conduits.