Steel Blade Grille - Vertical Fixed Blade 937-18X20 T-Bar 904 - Double Deflection Adjustable

904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 4" Duct Opening (front blades parallel to shortest dimension)

Performance Data - No Damper

12" and 14") * HVD OR - factory installed opposed radial damper (sizes 6"-14") * HVD FR - U

SUBMITTAL 700MA Series Submittal

4-way reversible door on square sizes

Steel Blade Grille - Vertical Fixed Blade 937-18X20 T-Bar 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