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Countersunk mounting holes for flush appearance with color matching Phillips Pozidriv screws
Standard Features * 2533 - Square or rectangular for vertical mount only
Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system
Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice face *
Parallel Volume Damper Low Leak 3000PLL-52X50 Commercial Countersunk mounting holes for flushh3. 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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