Lattice Return Air Grille 600-16X40 Step Down Ceiling Diffuser Provides 4-way air flow on

Provides 4-way air flow on one plane

904 - Double Deflection Adjustable Aluminum Blade Grille For a 32" x 18" Duct Opening (front blades parallel to shortest dimension)

inner dimension and outside dimension sizes available * Tamper proof screws * Standard Color

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

Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system

Lattice Return Air Grille 600-16X40 Step Down Ceiling Diffuser Provides 4-way air flow onStandard Features * 1 2" x 1 2" x 1 2" aluminum lattice return air grille * Surface mount grille with . 055 T6 extruded aluminum frame * 90% free area * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * 600 O opposed blade damper * No Labor Collar Square to round (square sizes only) * 600 T T Bar mount * 1 2" x 1 2" x 1" Lattice or 1" x 1" x 1" Lattice * Fractional sizes, inner