Volume Damper Low-Leak OBD 3000-0BDLL-20X16 Accessories Countersunk mounting holes with color

Countersunk mounting holes with color matching Phillips Pozidriv screws

UL listed and tested in accordance with UL Standard 555C

inner dimension and outside dimension available * Available in continuous lengths with butt joints * Tamper proof screws * Standard Color

Face set in an outer T-Bar filter grille frame

available 4" through 40" round (2549)

Volume Damper Low-Leak OBD 3000-0BDLL-20X16 Accessories Countersunk mounting holes with colorh3. 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.