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Centrifugal Rooftop Filtered Supply Fan, Belt Driven


Twin City Fan’s belt driven filtered supply fan, model BCRFS, is designed specifically for roof mounted applications, supplying clean, untempered make-up air. These fans offer high efficiency and quiet operation in a compact design.

BCRFS units feature double width forward curved centrifugal wheels, which produce high air volumes at low speeds. Units are manufactured under strict quality assurance standards to ensure catalogued performance and years of trouble-free operation.

Sizes (wheel diameters)

  • 8.86 to 22.05 inches (225 mm to 560 mm)


  • Airflow to 17,000 CFM (28,900 m3/hour)
  • Static pressure to 4 inches w.g. (990 Pa)

Installation manual