Aluminum Airfoil Blade Grille - Horizontal Fixed Blade 907-6X46 Damper:Opposed Damper Countersunk mounting holes for flush

Countersunk mounting holes for flush appearance with color matching screws

904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 20" Duct Opening (front blades parallel to shortest dimension)

T-20 Tamper Proof Screws

904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 12" Duct Opening (front blades parallel to shortest dimension)

RD Series Engineering/Performance Data

Aluminum Airfoil Blade Grille - Horizontal Fixed Blade 907-6X46 Damper:Opposed Damper Countersunk mounting holes for flushStandard Features * Extruded . 055 T6 aluminum surface mount return air grille * 0 fixed blades parallel to longest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * 907 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