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Options * 3000 OBDLL - Low Leak Air Control Damper
904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 6" Duct Opening (front blades parallel to shortest dimension)
SUBMITTALS 907 Series Submittal
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Adjustable aluminum airfoil blades oriented for 1 or 2 way airflow pattern
Parallel Blade Volume Damper 3000P-24X34 Step Down Ceiling Diffuser Options * 3000 OBDLL -h3. 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
