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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
Spiral pipe diameter must be 4” larger than Height of the duct opening
060 T6 extruded aluminum construction * Completely vision proof * High air capacities * Will accommodate door thickness ranging from 1 1/4" to 2 1/4" * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Driftwood Tan Options * 1310 Series - stainless steel door grille * Tamper proof screws * Standard Color
Blades spaced at 2/3"
Uniform 360 degree discharge pattern
3 or 4 way patterns * Spring push release for easy access to adjust pattern controllers * Round No Labor Collar sizes: 6-10"
Parallel Volume Damper Low Leak 3000PLL-24X40 past 12 months Spiral pipe diameter must beh3. 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
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