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700 CB40 - four way * 6x6 thru 20x20 diffuser sizes * Square to round No Labor Collar * 2x2 galvaneal steel panel with seismic support holes * Soft White Options * 700 CB40 0 - opposed blade damper * 700CB FR - U
Options * 3000 PLL - Low Leak Air Control Damper
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Center margins are mounted on the backside of the grille for a streamlined continuous look
Standard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to longest dimension
Parallel Volume Damper Low Leak 3000PLL-72X70 T-Bar 700 CB40 - four wayh3. 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
