Parallel Volume Damper Low Leak 3000PLL-36X22 Smoke-Fire Damper Hand operated level for easy

Hand operated level for easy filter access and cleaning

Full-length screwdriver operated Scoop Extractor

Minimum size 4"x4"

Opposed Blade Damper standard on 4" widths

Parallel Volume Damper Low Leak 3000PLL-36X22 Smoke-Fire Damper Hand operated level for easyh3. 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