Aluminum Airfoil Blade Double Deflection Diffuser 903-36X20 Accessories 4-way flush step down steel

4-way flush step down steel diffuser

enclosed in valve to assure trouble-free operation

Multi-Shutter Damper standard on 6" widths and larger

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 24" Duct Opening (front blades parallel to shortest dimension)

22 gauge galvanized steel roll formed frame

Aluminum Airfoil Blade Double Deflection Diffuser 903-36X20 Accessories 4-way flush step down steelStandard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to longest dimension, back blades parallel to the shortest dimension Extruded aluminum surface mount frame with signature line marks Provides 4 way air flow on one plane Nylon bushings on adj. blades prevent metal on metal rattle Countersunk mounting holes with color matching Phillips Pozidriv screws Rust resistant pre coat with durable powder