Aluminum Airfoil Blade Double Deflection Diffuser 903-24X20 Damper:Opposed Damper Mounting Holes - Designed for

Mounting Holes - Designed for ceiling or sidewall application

Heavy duty steel honeycomb construction

Nylon bushings on adj

Holds up to 1" filter

Aluminum Airfoil Blade Double Deflection Diffuser 903-24X20 Damper:Opposed Damper Mounting Holes - Designed forStandard 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