Aluminum Airfoil Blade Grille - Vertical Fixed Blade 908-18X30 Step Down Ceiling Diffuser Hand operated lever for easy

Hand operated lever for easy filter access and cleaning

22 gauge galvanized steel roll formed frame

904 Series Performance Data

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

Aluminum Airfoil Blade Grille - Vertical Fixed Blade 908-18X30 Step Down Ceiling Diffuser Hand operated lever for easyStandard 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