Parallel Blade Volume Damper 3000P-34X12 Commercial Standard Features * Use in

Standard Features * Use in applications for installing round without damper * Steel galvaneal construction

904 - Double Deflection Adjustable Aluminum Blade Grille For a 40" x 18" Duct Opening (front blades parallel to shortest dimension)

1 1/2 hour fire resistance rating

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

UL listed and tested in accordance with UL Standard 555

Parallel Blade Volume Damper 3000P-34X12 Commercial Standard Features * Use inh3. 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