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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
Spiral pipe diameter must be 4” larger than Height of the duct opening
Standard Features * Stamped steel curved blade T-Bar lay-in diffuser with perforated face * Five air patterns: 101 P - one way
3/4” Wide x 3/4” High square holes
102 P - two way
Opposed Blade Volume Damper 3000-0BD-66X40 past 12 months Spiral pipe diameter must beh3. 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.
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