Parallel Blade Volume Damper 3000P-40X10 Commercial Designed for return applications and

Designed for return applications and as a vented access door to equipment

2" thin-line roll formed out-of-airstream frame

Adjustable steel roll formed blades oriented for 1 or 2 way airflow pattern

Concealed mounting holes with mounting screws

Parallel Blade Volume Damper 3000P-40X10 Commercial Designed for return applications andh3. 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