Centrifugal, in-line fan with a double-width, double-inlet forward curved blower inside the housing. Belt drive, duct (square) mount. Used in a variety of commercial applications where the air is ducted through the building. An economical choice for low speed, low pressure general ventilation application. Motor is installed on the exterior of the unit to allow for a greater performance range compared to the DB unit.


  • Multiple access doors for service
  • Slip-fit duct connection
  • Factory installed horizontal mounting brackets
  • Motor mounting outside the housing for easy access


  • Housing Material: Galvanized Steel
  • Finish: Mill
  • Ventilator Type: Fan
  • Impeller: Centrifugal
  • Bearings: L-50, over 200,000 hours


  • Mounting: Ceiling/Suspended, Duct Mounted/Inline
  • Drive Type: Belt Drive
  • Motor: AC
  • Max Operating Temp (Standard Construction): 180°F
  • Speed Control: VFD, Vari-Flow, SimpliDrive
  • Flow: Supply, Exhaust
  • Filtration: Unfiltered

Accessories & Vari-Flow Controls