Aluminum Airfoil Blade Grille - Vertical Fixed Blade 908-12X40 Finish:Designer Color - Velvet Black Standard Features * Gang-operated opposed

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

INSTALLATION INSTRUCTIONS

12" and 14") * HVD OR - factory installed opposed radial damper (sizes 6"-14") * HVD FR - U

blades prevent metal on metal rattle

Aluminum Airfoil Blade Grille - Vertical Fixed Blade 908-12X40 Finish:Designer Color - Velvet Black Standard Features * Gang-operated opposedStandard Features * Extruded . 055 T6 aluminum surface mount return air grille * 0 fixed blades parallel to shortest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * 908 O recessed screwdriver operated opposed blade damper * No Labor Collar (square sizes only) * 900 T T Bar mount * 905 HD reinforced construction * 905 IS insect screen * 1335 1338 Series stainless steel