Volume Damper Low-Leak OBD 3000-0BDLL-70X18 Specialty Products 904 Series Performance Data

904 Series Performance Data

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 14" Duct Opening(front blades parallel to shortest dimension)

103 P - three way

Ceramic fiber blade installation with fiberglass cover*

CB30 - three way

Volume Damper Low-Leak OBD 3000-0BDLL-70X18 Specialty Products 904 Series Performance Datah3. 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.