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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
* 3 hour rated * UL and California State Fire Marshall approved * 4-1/4" standard frame style * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3
3/16” crossbars
RD - Round Ceiling Diffuser
Extruded aluminum frame with steel roll formed blades and steel multi-shutter damper
Adjustable baffle controllers to direct airflow horizontally or vertically
Volume Damper Low-Leak OBD 3000-0BDLL-44X18 Commercial * 3 hour rated *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.
