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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
Standard Features * 2561 - Square or rectangular fire door for vertical mount only
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 8" Duct Opening (front blades parallel to shortest dimension)
listed Fire-Resistance Diffuser * 700 Series - T-Bar Lay-in Panel * TVB - Thermal Vapor Blanket * Square collar
212° Fusible Link
Install with louvers in up or down position for best duct concealment
Volume Damper Low-Leak OBD 3000-0BDLL-58X22 Step Down Ceiling Diffuser Standard Features * 2561 -h3. 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.
US$ 173.00
US$ 221.50
