Parallel Volume Damper Low Leak 3000PLL-24X6 T-Bar Flush core and frame provides

Flush core and frame provides smooth surface

Blades spaced at 2/3"

904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 12" Duct Opening (front blades parallel to shortest dimension)

Galvanized Finish

Parallel Volume Damper Low Leak 3000PLL-24X6 T-Bar Flush core and frame providesh3. 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