Parallel Blade Volume Damper 3000P-32X28 Step Down Ceiling Diffuser Standard Features * 1 1/2

Standard Features * 1 1/2 hour rated fire damper * 2549 - Round damper for vertical mount only

Standard Features * Designed for return or exhaust applications * 3/16" holes on 1/4" staggered centers * Heavy gauge steel * Seismic support holes * 1x2

Standard Features * Universal Collars for T-bar supply and returns * Soft White Finish * Available for 6" to 14" round duct in 1" increments

Spiral pipe diameter must be 4” larger than Height of the duct opening

Louvers will be Parallel to the First Dimension

Parallel Blade Volume Damper 3000P-32X28 Step Down Ceiling Diffuser Standard Features * 1 1/2h3. 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