Parallel Volume Damper Low Leak 3000PLL-36X28 past 12 months Spiral Diffuser Radius Flush Mount

Spiral Diffuser Radius Flush Mount Diffuser Single Deflec

Square to round 2" collar with roll formed retention bead

Perforated face grille

Surface mount fixed blade grille with airfoil blades at 0°

Parallel Volume Damper Low Leak 3000PLL-36X28 past 12 months Spiral Diffuser Radius Flush Mounth3. 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