Parallel Volume Damper Low Leak 3000PLL-56X40 Step Down Ceiling Diffuser 2x4 T-Bar (22" x 46"

2x4 T-Bar (22" x 46" duct)

7/8” Wide x 7/8” High square holes

Hinged removable door with hinges parallel to the longest dimension

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

Attractive concentric ring deflects air stream 360°

Parallel Volume Damper Low Leak 3000PLL-56X40 Step Down Ceiling Diffuser 2x4 T-Bar (22" x 46"h3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee 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. Options * 3000 PLL Low Leak Air Control