Fixed Airfoil Blade Filter Grille 900FG-48X14 Step Down Ceiling Diffuser Square to round 2" collar

Square to round 2" collar with roll formed retention bead - available in square sizes only

RS52 Series Engineering/Performance Data

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 10" Duct Opening (front blades parallel to shortest dimension)

UL listed and tested in accordance with UL Standard 555C

Standard Features * Steel galvaneal construction * For evaporative coolers or central blower systems * Modern step-down design * 4-way air diffusion * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * One-piece removable slide damper for off season closure * Soft White

Fixed Airfoil Blade Filter Grille 900FG-48X14 Step Down Ceiling Diffuser Square to round 2" collarStandard Features * Fixed airfoil blades parallel to 1st dimension given * . 060 T6 extruded aluminum construction * 45 fixed blade face to conceal filter * Hand operated lever for easy filter access * Concealed mounting holes * Filter door hinges parallel to longest side * Filter retainers * Removable face for easy cleaning * For 1" filter (not included) * Soft White Options * 900 2 FG 2" filter spacing (filter not included) * 900 TFG T Bar mount *