Aluminum Airfoil Blade Double Deflection Diffuser 903-16X4 Accessories 4-way flush step down steel

4-way flush step down steel diffuser

Non-standard size collar (available in 6" through 20")

Options (must specify when ordering)

stair risers

Designer Color or Other Finish available on this product

Aluminum Airfoil Blade Double Deflection Diffuser 903-16X4 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