Pay in 4 interest-free payments of $754.13 Learn more
Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
w/ Steel Opposed Blade Damper
904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 10" Duct Opening (front blades parallel to shortest dimension)
22 gauge galvanized steel roll formed frame
1/2" spacing dual angular louvers for strength and maximum free area
Opposed Blade Volume Damper 3000-0BD-70X62 past 12 months w/ Steel Opposed Blade Damperh3. 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.
