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904 - Double Deflection Adjustable Aluminum Blade Grille For a 38" x 18" Duct Opening (front blades parallel to shortest dimension)
4-way reversible door on square sizes
Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws
RD Series Submittal
Aluminum Airfoil Blade Double Deflection Diffuser 904-20X14 Finish:Aluminum Paint 904 - Double Deflection Adjustable904 Double Deflection Adjustable Aluminum Blade Grille For a 20" x 14" Duct Opening (front blades parallel to shortest dimension) Standard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to shortest dimension, back blades parallel to longest 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
