Opposed Blade Volume Damper 3000-0BD-72X70 T-Bar Options * 304 stainless steel

Options * 304 stainless steel construction h3

1" and 1 1/2"

22 gauge butterfly style galvanized steel blades

½ × ½ × ½ Aluminum lattice

Opposed Blade Volume Damper 3000-0BD-72X70 T-Bar Options * 304 stainless steelh3. 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.