Aluminum Airfoil Blade Grille - Vertical Fixed Blade 906-16X14 Residential Registers & Grilles Spiral pipe diameter must be

Spiral pipe diameter must be 4” larger than the width of the grille

Adjustable baffle controllers to direct airflow horizontally or vertically

Back blades are parallel to the longest dimension

904 - Double Deflection Adjustable Aluminum Blade Grille For a 38" x 18" Duct Opening (front blades parallel to shortest dimension)

Note: Listed Size Is Nominal Duct Opening / Nominal Filter Size

Aluminum Airfoil Blade Grille - Vertical Fixed Blade 906-16X14 Residential Registers & Grilles Spiral pipe diameter must beStandard Features * Extruded . 055 T6 aluminum 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 * 906 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