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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
Nylon bushings for easy adjustment and quiet setting of blades running parallel to shortest dimension
Individually welded 14 guage diffusion bars
Countersunk mounting holes for flush appearance with stainless sheet metal screws
with 57% free area
Steel multi-shutter damper
Opposed Blade Volume Damper 3000-0BD-48X48 Step Down Ceiling Diffuser Nylon bushings for easy adjustmenth3. 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.
