Lattice Return Air Grille 600-4X42 Damper:without Damper 3 or 4 way patterns

3 or 4 way patterns * Spring push release for easy access to adjust pattern controllers * Round No Labor Collar sizes: 6-10"

Heavy Duty Construction (1 1/2" frame depth utilized)

Designed to minimize vision into the air duct

Double deflection transition box mount spiral pipe grille

Lattice Return Air Grille 600-4X42 Damper:without Damper 3 or 4 way patternsStandard 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