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Ships within 48 hours · Estimated delivery Sep 26 - Oct 1
Minimum size 4"x4"
Spiral pipe diameter must be 4” larger than the width of the grille
904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 14" Duct Opening (front blades parallel to shortest dimension)
RD Series Submittal
Aluminum Airfoil Blade Grille - Vertical Fixed Blade 906-18X24 T-Bar Minimum size 4"x4"Standard Features * Extruded . 055 T6 aluminum surface mount return air grille * 45 fixed blades parallel to shortest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * 906 O recessed screwdriver operated opposed blade damper * No Labor Collar (square sizes only) * 900 T T Bar mount * 905 HD reinforced construction * 905 IS insect screen * 1335 1338 Series stainless steel
