Opposed Blade Volume Damper 3000-0BD-24X48 T-Bar Perforated face grille

Perforated face grille

904 - Double Deflection Adjustable Aluminum Blade Grille For a 14" x 10" Duct Opening (front blades parallel to shortest dimension)

listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar

Hinged removable door with hinges parallel to the longest dimension

Stamped from cold roll steel

Opposed Blade Volume Damper 3000-0BD-24X48 T-Bar Perforated face grilleh3. 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.