Parallel Blade Volume Damper 3000P-28X20 Step Down Ceiling Diffuser Blades are parallel to the

Blades are parallel to the shortest dimension

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

UL listed and tested in accordance with UL Standard 555C

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Blade lock to secure blades once the product is activated

Parallel Blade Volume Damper 3000P-28X20 Step Down Ceiling Diffuser Blades are parallel to theh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee 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. Options * 3000 PLL Low Leak Air Control