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

Lever operated steel multi-shutter damper

Step down core designed for 4-way uniform air distribution

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