Volume Damper Low-Leak OBD 3000-0BDLL-42X16 T-Bar Standard Features * 4000 -

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

Standard Features * 2x2 panel with fixed 22 gauge steel perforated face * 7/8" fiberglass back (R4 value) * Pattern controllers can be adjusted to 1

91 Series Submittal

12" and 14") * HVD OR - factory installed opposed radial damper (sizes 6"-14") * HVD FR - U

Volume Damper Low-Leak OBD 3000-0BDLL-42X16 T-Bar 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.