Parallel Volume Damper Low Leak 3000PLL-72X24 past 12 months Surface mount fixed blade grille

Surface mount fixed blade grille with airfoil blades at 0°

Blades are parallel to the shortest dimension

Holds up to a 4" filter (not included) with filter retention tabs (FG4)

120x120 multiple

Maximum single section size 24"x24"

Parallel Volume Damper Low Leak 3000PLL-72X24 past 12 months Surface mount fixed blade grilleh3. 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