Aluminum Airfoil Blade Double Deflection Diffuser 903-36X4 Commercial 904 - Double Deflection Adjustable

904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 14" Duct Opening (front blades parallel to shortest dimension)

stair risers

Lever operated steel multi-shutter damper

Standard Features * Lightweight Aluminum vent louver * This is a larger version of the 4901 series * Flush face * Spring clip mounting * Able to withstand wet and corrosive environments * Easily installed using only a high grade silicon caulk * Satin Anodized finish Options * IS - Insect screen * Standard Color or Designer Color Finish available on this product

Standard Features * Aluminum construction deep housing and inner concentric rings * Designed for high volume long throw applications * Adjustable air direction * Easily installed with use of strong spring clips * No screwholes offers clean appearance for wall mount * Anodized finish Options * 1204 - turbo nozzle in panel mount

Aluminum Airfoil Blade Double Deflection Diffuser 903-36X4 Commercial 904 - Double Deflection AdjustableStandard 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