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2" ADC compliant round collar with a bead for ease of installation
3 cone steel diffuser with hinged core for easy duct access
with color matching Phillips Pozidriv screws
Round Bowtie Damper
Hand operated level for easy filter access and cleaning
Parallel Volume Damper Low Leak 3000PLL-66X38 Smoke-Fire Damper 2" ADC compliant round collarh3. 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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