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904 - Double Deflection Adjustable Aluminum Blade Grille for a 48" x 18" Duct Opening (front blades parallel to shortest dimension)
2x4 T-Bar (20" x 44" duct)
UL listed and tested in accordance with UL Standard 555C
Lever Operated Opposed Blade Damper
Standard Features * Return air T-Bar lay-in filter grille * Removable louvered 20 gauge steel face * 20" x 20"x 1" filter (not included) * 7/8" fiberglass back plenum cut holes 6"-16" (collar by others) * Seismic support holes * Soft White
Aluminum Airfoil Blade Grille - Vertical Fixed Blade 908-6X46 Step Down Ceiling Diffuser 904 - Double Deflection AdjustableStandard 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
