Parallel Volume Damper Low Leak 3000PLL-58X14 Residential Registers & Grilles Extruded aluminum fixed bar blades

Extruded aluminum fixed bar blades at 45°

Standard Features * For large volume air delivery * For evaporative coolers or central blower systems * Adjustable directional dampers with shut-off * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White

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

Hinged removable door with hinges parallel to the longest dimension

Type 316 stainless steel

Parallel Volume Damper Low Leak 3000PLL-58X14 Residential Registers & Grilles Extruded aluminum fixed bar bladesh3. 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