Parallel Blade Volume Damper 3000P-40X40 Specialty Products Damper manufactured from corrosion tested

Damper manufactured from corrosion tested galvanized mild steel (G-90)

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 18" Duct Opening (front blades parallel to shortest dimension)

Standard Features * Heavy guage cold roll steel (same as 350 series) * Ideal for return air in the toe space areas between kitchen cabinets

Delivers supply air in a 360°air pattern

Long throw individually adjustable blades with 1 1/2" blades on 1 1/2" centers or 3" blades on 3" centers

Parallel Blade Volume Damper 3000P-40X40 Specialty Products Damper manufactured from corrosion testedh3. 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