Opposed Blade Volume Damper 3000-0BD-66X34 past 12 months Standard Features * 4000 -

Standard Features * 4000 - door core grille with single frame * 4100 - door core grille with additional loose frame *

Designer Color or Satin Anodized Finish available on this product

Designer Colors

Square to round 2" collar with roll formed retention bead - available in square sizes only

Opposed Blade Volume Damper 3000-0BD-66X34 past 12 months Standard Features * 4000 -h3. 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.