Ended up with a surplus fan. Never been opened / used.
150MM 6 INCH Silent TIMER EXTRACTOR FAN MODERN DESIGNER WHITE BATHROOM, KITCHEN
Silent Round Bathroom Extractor Fan 100mm / 4" with White Front Cover
Xpelair 4" Simply Contour Silent CV4 bathroom extractor fan CV4SR, White
EXTRACTOR FAN VENTILATOR 4"/100mm SILENT POWERFUL BATHROOM TOILET KITCHEN WHITE
Quiet 4" 100mm Timer Extractor Fan Bathroom Kitchen Silent White Grey
