Volume Damper Low-Leak OBD 3000-0BDLL-16X16 Step Down Ceiling Diffuser inner dimension and outside dimension

inner dimension and outside dimension sizes available * Tamper proof screws * Standard Color

Round Bowtie Damper

* 2602 - Square or rectangular spring actuated (6) for horizontal or vertical mount

listed Fire-Resistance Diffuser * 700 Series - T-Bar Lay-in Panel * TVB - Thermal Vapor Blanket * Square collar

Available in 4" through 29" round

Volume Damper Low-Leak OBD 3000-0BDLL-16X16 Step Down Ceiling Diffuser inner dimension and outside dimensionh3. 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.