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Forward Curved Inline Twin
Duct Blowers


The DBT Inline Twin Duct Blower is specifically designed for duct applications handling relatively clean air, including supply, exhaust and return air systems. The unit provides high efficiency and quiet operation in a compact design that can be mounted in bottom horizontal or top horizontal positions. Duct collars are provided for easy mounting connections.

The DBT features a forward curved centrifugal impeller that produces high air volumes at low speeds. All impellers are statically and dynamically balanced. This unit is manufactured under strict quality assurance standards to ensure cataloged performance and years of trouble-free operation, and can be easily serviced through access panels without removing duct connections.

Sizes (impeller diameters)

  • 8 to 20 inches (205 mm to 510 mm)


  • Airflow to 31,500 CFM (53,500 m3/hour)
  • Static pressure to 3 inches w.g. (750 Pa)