Our Duct Booster Fan (DBF) series features 3 different products: DBF 110, DBF 4XL, and DBF 4XLT.
Each are designed for boosting air in applications such as extended ductwork, crawlspace ventilation, and dryer exhaust. The DBF 110 is equipped with a pressure-sensing switch that activates the fan once positive pressure is sensed in the duct line. Additionally, the housing is made of plastic.
The DBF 4XL has a pressure switch, a 5-ft cord for 120V/1~, and is made of galvanized steel.
Our premier DBF solution is the DBF 4XLT. It has a pressure switch, a 5-ft cord for 120V/1~, an indicator panel to show proper operation, and, like the DBF 4XL, is made of galvanized steel.
