Aluminum Airfoil Blade Grille - Horizontal Fixed Blade 907-4X40 Residential Registers & Grilles Use for applications with round

Use for applications with round ductwork to create a clean and easy to install finish for your round registers or diffusers

Nylon bushings on adjustable blades prevent metal on metal rattle

Standard Features * Heavy duty honeycomb construction * Blades run parallel to longest dimension given * Gym Grade - includes welded core and extra supports for heavy duty application * Mounting holes for sidewall and ceiling application * Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system * Soft White Options * No mounting holes * Tamper Proof Screws * Standard Color

Steel multi-shutter damper

Aluminum Airfoil Blade Grille - Horizontal Fixed Blade 907-4X40 Residential Registers & Grilles Use for applications with roundStandard Features * Extruded . 055 T6 aluminum 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 * 907 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