Parallel Blade Volume Damper 3000P-24X18 T-Bar Designed for large volume air

Designed for large volume air delivery

Adjustable single deflection grille

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 20" Duct Opening (front blades parallel to shortest dimension)

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 24" Duct Opening (front blades parallel to shortest dimension)

with color matching Phillips Pozidriv screws

Parallel Blade Volume Damper 3000P-24X18 T-Bar Designed for large volume airh3. 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