A filter cartridge 10 includes a connective end for mating with a filter
head 48 and providing fluid communication between the filter media chamber
and the filter head. The connective end includes a tubular member 34 disposed
axially in a hollow neck 18 to define inner and radially outer axial passages
(30, 32) providing independent conduits for dual flow through the neck.
The outer axial passage includes an opening 38 in the elongated portion
22 of the neck and a bypass opening 42 in the distal end portion
of the neck. The inner axial passage includes an opening 40 in the distal
end of the neck. Proximal and distal radial seals (26, 28) are provided
on the outer periphery of the elongated neck portion 22 to ensure water-tight
engagement when the neck is inserted into the receiving core of the filter head.
