Parallel Volume Damper Low Leak 3000PLL-58X32 Residential Registers & Grilles " Spiral pipe diameter must

" Spiral pipe diameter must be 4” larger than width of grille

Designed to minimize vision into the air duct

Standard Features * Heavy guage cold roll steel (same as 350 series) * Ideal for return air in the toe space areas between kitchen cabinets

Standard Features * For evaporative cooling or high velocity exhaust applications with divided 2-way multi-louver and combination shut-off * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White

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

Parallel Volume Damper Low Leak 3000PLL-58X32 Residential Registers & Grilles " Spiral pipe diameter musth3. 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