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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
UL listed and tested in accordance with UL Standard 555C
Dampers above 80 square inches free area will be provided with blade insulation
904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 14" Duct Opening(front blades parallel to shortest dimension)
904 - Double Deflection Adjustable Aluminum Blade Grille For a 48" x 30" Duct Opening (front blades parallel to shortest dimension)
Aluminum Airfoil Blade Double Deflection Diffuser 903-48X4 Accessories UL listed and tested inStandard 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
