Volume Damper Low-Leak OBD 3000-0BDLL-72X22 Residential Registers & Grilles 3 or 4 way air

3 or 4 way air patterns from face * One size fits 6" thru 16" (collar by others) * Soft White

1/4” crossbars

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

375 Series Engineering/Performance Data

Reinforced welded core and extra supports for heavy duty application

Volume Damper Low-Leak OBD 3000-0BDLL-72X22 Residential Registers & Grilles 3 or 4 way airh3. 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.