The eggcrate air grille is used for supplying or returning air, has the lowest pressure drop and sound level by the largest free area available. Consisting of aluminum strips that are ma-chine cut and notched, then bonded together to form a hori-zontal and vertical grid structure, the eggcrate air grille has uniform square openings with 0/45 degree deflection air flow. Ideal for ceiling and wall installation in commercial and resi-dential HVAC projects. Eggcrate plates fixed to frame or re-movable core is optional.