Tjernlund Products, a Minnesota-based manufacturer of ventilation fans, offers a family of Duct Booster fans designed for easy installation within heating/cooling ducts to increase flow of conditioned air to desired areas.
Economical Duct Booster fans operate quietly and are built to provide years of trouble-free service. There are models of varying capacities for installation in metal and flex ductwork. Optional accessories are available for automatic activation and to control fan speed.
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