Greenwood Centrifugal Recessed Fan, Remotely Switched - RF90BW 655 010 110 To see the Vireo youtube

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To achieve the longest duct run rigid ducting should be used and not flexible ducting

Unique iris shutter prevents back draughts

The Select AXSK is a basic single speed axial fan with anti-backdraught shutters and built in guide vanes to improve airflow

30 or 40 minutes and an optional two minute delay start on timer version

Greenwood Centrifugal Recessed Fan, Remotely Switched - RF90BW 655 010 110 To see the Vireo youtubeThe RF90BW is a single speed, 100mm duct, recessed centrifugal fan. Suitable for duct runs up to 10m long. It also comes with integral back draught shutter. This is the 'B' model which is a single speed fan operated via a light switch or pull cord. The RF90BW replaces the R90B. So if you have a R90B then this fan is its direct replacement and it will fit in the same space as your existing product and ducting. The R90 range has been in production since