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904 - Double Deflection Adjustable Aluminum Blade Grille For a 48" x 20" Duct Opening (front blades parallel to shortest dimension)
Collar sizes available in 6”–10”
855 Series Engineering/Performance Data
Type 304 stainless steel
375 Series Engineering/Performance Data
Steel Blade Grille - Vertical Fixed Blade 937-20X6 Accessories 904 - Double Deflection AdjustableStandard Features *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 * 937 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 version * Tamper proof screws
