Filter Assemblies; Components; and, Methods

摘要

Filter arrangements and components therefore are described. Example arrangements are described. In one, a serviceable filter cartridge includes upper and lower end pieces, each having a seal thereon; the upper having a rigid protection thereon, the lower having a non-circular outer perimeter.

主权项

1. A filter cartridge comprising:
(a) a media pack surrounding an open filter interior and positioned in extension between first and second, opposite, end pieces; (b) the first end piece having a central aperture therethrough and a first, rigid, axial projection thereon, that projects in a direction away from the media;
(i) a first seal member positioned on the first end piece; (c) the second end piece having: a central aperture therethrough; and, a non-circular outer perimeter; and, (d) a radially outwardly projecting, second, seal member positioned on the second end piece.