Here we have a Xpelair Extractor Fan C4TSR 100mm 4" Simply Silent Fan. Ducting size 100mm.
Xpelair Fan VX100P 100mm (4") Axial Bathroom Extractor Fan White 220-240V
Xpelair Simply Silent™ C4TSR 100mm Axial Extract Fan with Timer
Xpelair Simply Silent 100mm / 4" Bathroom Extractor Fan Kit White DX100HTS
Xpelair VX100-SP Standard Bathroom Extractor Fan 4inch 100mm 92935AW White
Xpelair VX100T-SP TIMER Bathroom Extractor Fan 4inch 100mm 92931AW White
Xpelair Simply Silent Extractor Fan Timer 100MM - 4 Inch Round - Square - White
