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Airfoil blades individually adjustable on 3/4" centers
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 10" Duct Opening (front blades parallel to shortest dimension)
Available 4" thru 40" round
screw holes and color matching panhead screws * Standard Color
Recommended Minimum Sleeve Thickness for Fire Dampers
Parallel Blade Volume Damper 3000P-24X10 Step Down Ceiling Diffuser Airfoil blades individually adjustable onh3. 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$ 34.00
US$ 175.00
US$ 10.00
US$ 20.00
