Parallel Blade Volume Damper 3000P-28X12 Commercial 4-way reversible door on square

4-way reversible door on square sizes

Stamped from cold roll steel

Standard Features * Lightweight Aluminum vent louver * Able to withstand wet and corrosive environments * Spring clip mounting * Easily installed using only a high grade silicon caulk * Satin Anodized finish Options * IS - Insect screen * Standard Color or Designer Color Finish available on this product

Steel riveted and metal formed assembly

Flush core and frame provides smooth surface

Parallel Blade Volume Damper 3000P-28X12 Commercial 4-way reversible door on squareh3. 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