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Mounting Holes - Designed for ceiling or sidewall application
Front blades are parallel to the shortest dimension
*Note: Ceramic fiber blade insulation is not UL required on dampers with free areas less than 80 square inches
Ceramic fiber blade installation with fiberglass cover*
CB30 - three way
Parallel Blade Volume Damper 3000P-56X46 Smoke-Fire Damper Mounting Holes - Designed forh3. 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
