Parallel Volume Damper Low Leak 3000PLL-44X44 Specialty Products Product sizes available to fit

Product sizes available to fit spiral pipe diameters 8” – 48

Heavy gauge steel construction

2x4 T-Bar (22" x 46" duct)

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 4" Duct Opening  (front blades parallel to shortest dimension)

Parallel Volume Damper Low Leak 3000PLL-44X44 Specialty Products Product sizes available to fith3. 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