Opposed Blade Volume Damper 3000-0BD-40X24 Step Down Ceiling Diffuser Delivers supply air in a

Delivers supply air in a 360° air pattern

Negator stainless steel closure springs mounted on spring pin brackets

Ceramic fiber blade insulation with fiberglass cover*

Soft white

1/2” Wide x 1/2” High square holes

Opposed Blade Volume Damper 3000-0BD-40X24 Step Down Ceiling Diffuser Delivers supply air in ah3. 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.