Lattice Return Air Grille 600-16X22 Damper:without Damper three or four diffusers per

three or four diffusers per panel * Countersunk sunk screwholes for ceiling mount * Standard Color or Designer Color Finish available on this product

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 12" Duct Opening (front blades parallel to shortest dimension)

Tamper Proof Screws - stainless steel TORX Center Pin

Narrow ceiling grid dimples for 9/16" T-Rails

Lattice Return Air Grille 600-16X22 Damper:without Damper three or four diffusers perStandard 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