Maximize energy economy.
Match the airflow to actual requirements.
Fan can be installed in any position.
Internal vanes insure high volume and pressure. The sturdy housing ensures quiet, worry-free operation.
Sizes : 4 inch, 5 inch, 6 inch, 8 inch, 10 inch.
Designed to fit standard size Spiral Ducting.
Motors are 100 % speed controlable through Inexpensive electronic controls.
Includes Backward Inclined Motorized Impeller.