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One-piece removable slide damper for off-season closure
RD Series Submittal
904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 18" Duct Opening (front blades parallel to shortest dimension)
904 - Double Deflection Adjustable Aluminum Blade Grille For a 38" x 18" Duct Opening (front blades parallel to shortest dimension)
Aluminum Airfoil Blade Double Deflection Diffuser 904-20X14 Finish:Aluminum Paint One-piece removable slide damper for904 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
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