Lattice Return Air Grille 600-22X42 Finish:Designer Color - Storm Gray 904 - Double Deflection Adjustable

904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 6" Duct Opening   (front blades parallel to shortest dimension)

Hinged removable extruded aluminum face frame with signature line marks

Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system

Square to round 2" collar with roll formed retention bead

Lattice Return Air Grille 600-22X42 Finish:Designer Color - Storm Gray 904 - Double Deflection AdjustableStandard 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