Lattice Return Air Grille 600-40X48 past 12 months Blades are parallel to the

Blades are parallel to the shortest dimension

Modern step-down design with 4-way air diffusion

Countersunk mounting holes for flush appearance with color matching Phillips Pozidriv screws

Lever Operated Opposed Blade Damper

Nylon bushings on adjustable blades to prevent metal on metal rattle

Lattice Return Air Grille 600-40X48 past 12 months Blades are parallel to theStandard Features * 1 2" x 1 2" x 1 2" aluminum lattice return air grille * Surface mount grille with . 055 T6 extruded aluminum frame * 90% free area * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * 600 O opposed blade damper * No Labor Collar Square to round (square sizes only) * 600 T T Bar mount * 1 2" x 1 2" x 1" Lattice or 1" x 1" x 1" Lattice * Fractional sizes, inner