Lattice Return Air Grille 600-4X40 Step Down Ceiling Diffuser Five air patterns available

Five air patterns available

Attractive concentric ring deflects air stream 360°

Standard Features * Gang-operated opposed blade radial volume control damper for use with RD Series Round Diffusers * Available in 2" increments from 6"-24"

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Heavy Duty ConstructionMRI CompatibleInsect Screen

Lattice Return Air Grille 600-4X40 Step Down Ceiling Diffuser Five air patterns availableStandard 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