Volume Damper Low-Leak OBD 3000-0BDLL-58X20 T-Bar Standard Features * Flush modular

Standard Features * Flush modular curved blade T-Bar diffuser * Curved blade cores sit flush with face for more uniform air flow * Movable cores provide multiple fixed air patterns * 6x6 thru 14x14 diffuser sizes * Square to round No Labor Collar * 2x2 galvaneal steel panel with seismic support holes * Soft White Options * 700MCB O - opposed blade damper * TVB - Thermal Vapor Blanket * Square collar

125") Aluminum Construction 12 GA Steel Construction

Step down core designed for 4-way uniform air distribution

Performance Data With Opposed Blade Damper

blade to blade neoprene seals

Volume Damper Low-Leak OBD 3000-0BDLL-58X20 T-Bar Standard Features * Flush modularh3. 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.