Pay in 4 interest-free payments of $196.13 Learn more
Ships within 48 hours · Estimated delivery Nov 12 - Nov 17
Divided 2-way multi-louver and combination shut-off
Countersunk mounting holes for flush appearance with color matching Phillips Pozidriv screws
Smoke Test and More Information on MA Series Diffusers
Standard Features * 2561 - Square or rectangular fire door for vertical mount only
60% free area * Soft White Options * Countersunk screwholes with matching Phillips #8 x 1-1/2" oval Screws * 10 or 12 gauge steel * Tamper proof screws
Volume Damper Low-Leak OBD 3000-0BDLL-40X20 Smoke-Fire Damper Divided 2-way multi-louver and combinationh3. 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.
