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* 2534 - Square or rectangular spring actuated (6) for horizontal or vertical mount
contour molded fiberglass back with a foil barrier backing
Type 316 stainless steel
Ceiling opening must be 4” larger in length and width than the nominal duct size
Parallel Blade Volume Damper 3000P-50X16 Specialty Products * 2534 - Square orh3. 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
