Abstract: An improved triangular filter cartridge and apparatus is provided comprising a generally cylindrical vessel having a plurality of generally triangularly shaped filter cartridges disposed therein. Each triangular filter cartridge has one of its substantially flat sides slightly spaced apart from and in direct facing relationship with the inner surface of the vessel, whereby a greater number of triangular filter cartridges can be compactly disposed within said vessel to increase the filtration capacity thereof. Each filter cartridge includes a passage that is triangularly shaped in a plane perpendicular to the axial direction.

Abstract: An improved triangular filter cartridge and apparatus is provided comprising a generally cylindrical vessel having a plurality of generally triangularly shaped filter cartridges disposed therein. Each triangular filter cartridge has one of its substantially flat sides slightly spaced apart from and in direct facing relationship with the inner surface of the vessel, whereby a greater number of triangular filter cartridges can be compactly disposed within said vessel to increase the filtration capacity thereof.

Abstract: An improved triangular filter cartridge and apparatus is provided comprising a generally cylindrical vessel having a plurality of generally triangularly shaped filter cartridges disposed therein. Each triangular filter cartridge has one of its substantially flat sides slightly spaced apart from and in direct facing relationship with the inner surface of the vessel, whereby a greater number of triangular filter cartridges can be compactly disposed within said vessel to increase the filtration capacity thereof.

Abstract: A coalescer or filter cartridge end cap having a disc-like base portion adapted to support filter media or coalescing media, and a central opening therein through which the liquid to be passed through the filter or coalescer flows. A counterbore section coaxial with the center line of the end cap forms a downwardly depending skirt having a lower edge adapted to receive a gasket. The skirt extends sufficiently to permit the cartridge equipped with the end caps of the present invention to be fitted over a wide variety of cartridge mounting stools, which normally include a short annular upstanding extension perpendicular to the cartridge sealing surface. Additionally, the inner diameter of the skirt is dimensioned to allow for sufficient clearance between the inner diameter of the skirt and the outer diameter of the stool extension, and is sufficiently long to afford clearance space between the upper end of the stool extension and the bottom surface of the base portion.