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Greenwood Airvac AXS100 Bathroom / Toilet Extractor Fan 100mm / 4 Inch - Standard Version (NO Timer) : Amazon.co.uk: DIY & Tools
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Greenwood Airvac RF90BW Recessed Centrifugal Bathroom Extractor Fan & Pull Cord - White | ElectricalDirect
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Greenwood Airvac AXS100TR Toilet/Bathroom Extractor Fan with Run on Timer, White, 4 inch : Amazon.co.uk: DIY & Tools
Greenwood Airvac on Twitter: "@Taid50 Hi David, There is a small round cover in the bottom corner just below the word 'airvac'. Remove the small round plastic cover and there should be
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