Parallel Blade Volume Damper 3000P-38X26 Step Down Ceiling Diffuser 425 Series Submittal

425 Series Submittal

Double deflection transition box mount spiral pipe grille

with 54% free area

Heavy Duty Construction (1 1/2" frame depth utilized)

Divided 2-way multi-louver and combination shut-off

Parallel Blade Volume Damper 3000P-38X26 Step Down Ceiling Diffuser 425 Series Submittalh3. 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