Parallel Volume Damper Low Leak 3000PLL-24X16 past 12 months Blades run parallel to longest

Blades run parallel to longest dimension

linkage and handle enclosed in valve to assure trouble-free operation

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

Countersunk mounting holes for flush appearance with color matching screws

Access door with 1-3/8" deep steel roll formed frame

Parallel Volume Damper Low Leak 3000PLL-24X16 past 12 months Blades run parallel to longesth3. 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