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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
Nylon bushings on adjustable blades to prevent metal on metal rattle
To adjust diffuser
Countersunk mounting holes for flush appearance with stainless sheet metal screws
Countersunk mounting holes for flush appearance with color matching screws
3/16” crossbars
Volume Damper Low-Leak OBD 3000-0BDLL-40X16 past 12 months Nylon bushings on adjustable bladesh3. 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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