Volume Damper Low-Leak OBD 3000-0BDLL-36X30 Step Down Ceiling Diffuser Standard Features * Fixed airfoil

Standard Features * Fixed airfoil blades parallel to 1st dimension given *

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 24" Duct Opening (front blades parallel to shortest dimension)

CB Series 6X6 REVIT Files

listed Fire-Resistance Diffuser * 700 Series - T-Bar Lay-in Panel * TVB - Thermal Vapor Blanket * Square collar

back blades parallel to the shortest dimension Extruded aluminum surface mount frame with signature line marks Provides 4-way air flow on one plane Nylon bushings on adj

Volume Damper Low-Leak OBD 3000-0BDLL-36X30 Step Down Ceiling Diffuser Standard Features * Fixed airfoilh3. 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.