Parallel Volume Damper Low Leak 3000PLL-60X46 Step Down Ceiling Diffuser T-Bar Modular Core Diffuser

T-Bar Modular Core Diffuser

14 GA 304 SS Construction

see 2700 series)

Building materials rated 2 hours or less

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

Parallel Volume Damper Low Leak 3000PLL-60X46 Step Down Ceiling Diffuser T-Bar Modular Core Diffuserh3. 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