Aluminum Airfoil Blade Grille - Vertical Fixed Blade 908-22X24 Damper:without Damper Standard Features * Return air

Standard Features * Return air T-Bar lay-in filter grille for 20" x 20" duct * Removable louvered 20 gauge steel face * 20" x 20" x 1" filter (not included) * Square collar (20x20) * 2x2 panel * Seismic support holes * Soft White Options * Square to round No Labor Collar

375 Series Engineering/Performance Data

One piece curved frame with gasket fits flush to spiral pipe

Square to round transition collar

Aluminum Airfoil Blade Grille - Vertical Fixed Blade 908-22X24 Damper:without Damper Standard Features * Return airStandard 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