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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
Free area equals more than 75% of nominal size
Hinged removable face with hinges parallel to longest side
904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 4" Duct Opening (front blades parallel to shortest dimension)
MRI Compatible
Countersunk mounting holes for flush appearance
Aluminum Airfoil Blade Grille - Horizontal Fixed Blade 907-42X42 Accessories Free area equals more thanStandard 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
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