Volume Damper Low-Leak OBD 3000-0BDLL-56X24 T-Bar 3 or 4 way air

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

Product sizes available to fit spiral pipe diameters 8” – 48

Standard Features * Return air T-Bar lay-in filter grille * Removable louvered 20 gauge steel face * 20" x 20"x 1" filter (not included) * 7/8" fiberglass back plenum cut holes 6"-16" (collar by others) * Seismic support holes * Soft White

to 23 29/32"

Holds up to a 4" filter (not included) with filter retention tabs (FG4)

Volume Damper Low-Leak OBD 3000-0BDLL-56X24 T-Bar 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.