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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
Multi-Shutter Damper standard on 6" widths and larger
RD Series Engineering/Performance Data
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 8" Duct Opening (front blades parallel to shortest dimension)
3/16” holes on 1/4” staggered centers Extruded aluminum frame with signature line marks Perforated material 58% free area Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws Rust resistant pre-coat with durable powder finish Soft White
Rust resistant pre-coat with durable powder finish
Aluminum Airfoil Blade Grille - Horizontal Fixed Blade 907-20X12 Damper:Opposed Damper Multi-Shutter Damper standard on 6"Standard Features Surface mount fixed blade grille with airfoil blades at 0 Blades are parallel to the longest dimension Blades spaced at 2 3" Extruded aluminum surface mount frame with signature line marks Countersunk mounting holes with color matching Phillips Pozidriv screws Rust resistant pre coat with durable powder finish Soft White Options Recessed screwdriver operated Opposed Blade Damper 2" ADC compliant round collar with bead for ease of
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