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Sleeve Submittal
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 12" Duct Opening (front blades parallel to shortest dimension)
165° replaceable fusible link
inner dimension and outside dimension available * Available in continuous lengths with butt joints * Tamper proof screws * Standard Color
2x4 T-Bar (22" x 46" duct)
Opposed Blade Volume Damper 3000-0BD-66X20 Step Down Ceiling Diffuser Sleeve Submittalh3. 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.
