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Modern step-down design with 4-way air diffusion
12 & 14" * Mill finish
Standard Features *
Allows for 2-way airflow
Negator stainless steel closure springs mounted on spring pin brackets
Parallel Blade Volume Damper 3000P-40X30 Residential Registers & Grilles Modern step-down design with 4-wayh3. 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
