Filtration media pack, filter element, and methods

A filtration media pack comprising:

• (a) a plurality of layers of filter media wherein the layers of filter media comprise a folded sheet and a facing sheet with spaces between the layers;
• (b) a first portion of the spaces between the layers of filter media being closed to unfiltered fluid flowing into the first portion of the spaces between the layers, and a second portion of the spaces between the layers being closed to unfiltered fluid flowing out of the second portion of the spaces between the layers, so that fluid passing into one face of the media pack and out another face of the media pack passes through media to provide filtration of the fluid;
• and
• (c) wherein the folded sheets comprise first peaks and second peaks, and at least a portion of the folded sheets have a crease aligned so that it approaches toward a first peak and away from a second peak.