Aluminum Airfoil Blade Single Deflection Diffuser 901-48X20 T-Bar Install with louvers in up

Install with louvers in up or down position for best duct concealment

Standard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to longest dimension

Individually welded 14 guage diffusion bars

904 - Double Deflection Adjustable Aluminum Blade Grille For a 40" x 18" Duct Opening (front blades parallel to shortest dimension)

Aluminum Airfoil Blade Single Deflection Diffuser 901-48X20 T-Bar Install with louvers in upStandard Features * Extruded aluminum (. 055 T6) surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of airfoil blades * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Single deflection diffuser with adjustable airfoil blades * Airfoil blades are parallel to longest dimension * Allows 2 way air deflection on one plane * Soft White Options * 901 O with recessed screwdriver