Patent ID: 7625419

Claim:
An air filter cartridge comprising: (a) a media pack arrangement comprising a plurality of flutes extending between an inlet face and an outlet face; (i) the flutes including: a first set of inlet flutes open adjacent the inlet face and closed adjacent the outlet face; and, a second set of outlet flutes open adjacent the outlet face and closed adjacent the inlet face; (ii) the media pack arrangement having first and second, opposite, side ends; (b) a first, molded-in-place, side piece secured to the first side end of the media pack arrangement; (i) the first, molded-in-place, side piece having a downstream edge with a central apex and end edges on opposite sides of the apex; (c) a second, molded-in-place, side piece secured to the second side end of the media pack arrangement; (i) the second, molded-in-place, side piece having a downstream edge with a central apex and end edges on opposite sides of the apex; and, (d) a housing seal arrangement secured in position in extension around the media pack arrangement and the first and second molded-in-place side pieces.