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2-way reversible door on rectangular sizes
Hinged removable extruded aluminum face frame with signature line marks
Lever operated steel multi-shutter damper
2-way register with stiffened 1/2" fan-shaped louvers for silent operation
Parallel Volume Damper Low Leak 3000PLL-36X36 Specialty Products 2-way reversible door on rectangularh3. 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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