Duct Blower - Backward Inclined


Centrifugal, in-line fan with a double-width, double-inlet backward inclined blower inside the housing. Belt drive, duct (square) mount. Used in a variety of commercial applications where the air is ducted through the building at pressure greater than what is suitable for a forward curve wheel. Motor is installed on the exterior of the unit. This allows 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 inside 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
  • Flow: Supply, Exhaust
  • Filtration: Unfiltered
Made in the USA

Accessories & Vari-Flow Controls