| Airtech Products, Inc.: Manufacturer of aluminum louvers and other components for the air cooled heat exchanger and cooling tower industries. Includes actuators, axial fans, fan rings, and hail/fan guards. |
| Arrow United Industries: Manufacturer of industrial, commercial and multi-zone dampers. Also offers architectural louvers, walk-in doors, duct access doors, and louvered penthouses. |
| Cesco Products: Manufacturer of air ventilation and control products for the heating, ventilating and air conditioning industry including dampers, louvers, vents, and doors. |
| Flextor Inc.: Manufacturer of dampers and heavy-duty expansion joints for industrial air handling applications. |
| Louvers & Dampers: Custom manufacturer of louvers, dampers and roof top equipment for the HVAC industry. |
| LR West: Manufacturers of aluminum fan shutters, louvers, dampers, and air control products. Specializes in supply to the horticulture, nursery, poultry, equine and dairy industries. |
| MCM Steel, Inc.: Design and manufacture of heavy duty industrial dampers and expansion joints. |
| Metropolitan Air Technology, Inc.: Manufacturers of cable operated dampers and remote control balancing dampers that are used to balance airflows in hard ceilings. Offers a listing of client projects and an overview of products. |
| NCA International Group: Manufacturer of louvers and dampers for commercial and light industrial applications. |
| Pottorff: Offers ceiling radition dampers, fire-smoke dampers, air control products and louvers. |
| Safe-Air Dowco: Manufacturer of louvers and dampers for the commercial and industrial construction markets. |
| TSC Instruments Pvt. Ltd.: Manufacturer of electrical actuators, fire and volume control dampers, HVAC control valves, magnetic drive pumps, and conveyor systems - India |
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