Steel Blade Grille - Horizontal Fixed Blade 936-30X4 Step Down Ceiling Diffuser 904 - Double Deflection Adjustable

904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 6" Duct Opening   (front blades parallel to shortest dimension)

PERFORMANCE DATA 915 Series Engineering/Performance Data

Stamped steel face with roll formed frame

CSFM California State Fire Marshal listed

Holds up to 1" filter

Steel Blade Grille - Horizontal Fixed Blade 936-30X4 Step Down Ceiling Diffuser 904 - Double Deflection AdjustableStandard Features *Surface mount return air grille * 45 fixed blades parallel to shortest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * 936 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