Lattice Return Air Grille 600-22X40 Finish:Designer Color - Aluminum Paint Opposed Blade Damper standard on

Opposed Blade Damper standard on 4" widths

back blades parallel to longest dimension

Concealed mounting holes

Spiral pipe diameter must be 4” larger than Height of the duct opening

built-in vanities

Lattice Return Air Grille 600-22X40 Finish:Designer Color - Aluminum Paint Opposed Blade Damper standard onStandard 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