Parallel Volume Damper Low Leak 3000PLL-38X12 Specialty Products Blades are parallel to the

Blades are parallel to the shortest dimension

RD - Round Ceiling Diffuser

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

Maximum single section size 24"x24"

Parallel Volume Damper Low Leak 3000PLL-38X12 Specialty Products Blades are parallel to theh3. 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