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3/16” holes on 1/4” staggered centers Extruded aluminum frame with signature line marks Perforated material 58% free area Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws Rust resistant pre-coat with durable powder finish Soft White
3 cone steel diffuser with hinged core for easy duct access
Countersunk mounting holes for flush appearance with color matching Phillips Pozidriv screws
Standard Features * Individually adjustable curved blade T-Bar diffuser * Core is constructed of
Opposed Blade Volume Damper 3000-0BD-70X40 Smoke-Fire Damper 3/16” holes on 1/4” staggeredh3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee 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.
