Opposed Blade Volume Damper 3000-0BD-62X20 Step Down Ceiling Diffuser Holds up to 1" filter

Holds up to 1" filter (not included)

For damper free area chart A click here * 2663 - Out-of-Airstream fire door

Standard Features * Extruded

904 - Double Deflection Adjustable Aluminum Blade Grille for a 16" x 8" Duct Opening   (front blades parallel to shortest dimension)

Countersunk mounting holes with color matching Philips posi-drive screws

Opposed Blade Volume Damper 3000-0BD-62X20 Step Down Ceiling Diffuser Holds up to 1" filterh3. 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.