Fixed Airfoil Blade Filter Grille 900FG-20X18 Step Down Ceiling Diffuser Standard Features * Universal Collars

Standard Features * Universal Collars for T-bar supply and returns * Soft White Finish * Available for 6" to 14" round duct in 1" increments

Airfoil blades individually adjustable on 3/4" centers

Collar sizes available in 6”–10”

All steel galvaneal construction

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

Fixed Airfoil Blade Filter Grille 900FG-20X18 Step Down Ceiling Diffuser Standard Features * Universal CollarsStandard 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 *