Aluminum Airfoil Blade Grille - Vertical Fixed Blade 908-18X26 Damper:Opposed Damper Holds up to a 1"

Holds up to a 1" filter (not included) with filter retention tabs (FG1)

For evaporative cooling or high-velocity exhaust applications

904 - Double Deflection Adjustable Aluminum Blade Grille For a 38" x 18" Duct Opening (front blades parallel to shortest dimension)

12 & 14" * Mill finish

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

Aluminum Airfoil Blade Grille - Vertical Fixed Blade 908-18X26 Damper:Opposed Damper Holds up to a 1"Standard 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