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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
For damper free area chart A click here * 2663 - Out-of-Airstream fire door
blades prevent metal on metal rattle
Standard Features * Extruded aluminum construction * 45 fixed blades parallel to longest dimension * Margin edges are 7/8" projection for baseboard installation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 1100FF - flush frame * Fractional and odd dimension sizes * Standard Color
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 8" Duct Opening (front blades parallel to shortest dimension)
1/4" cross bars
Parallel Blade Volume Damper 3000P-22X12 T-Bar For damper free area charth3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3. Options * 3000 PLL Low Leak Air Control
US$ 22.95
US$ 17.10
US$ 17.28
