Duct extends from 204mm to 350mm.
4 x Vent Axia NBR dMEV C Lo Carbon Humidistat & Timer Extractor Fan 4" 498096
4 x Vent Axia 251410C VA100XT Axial Extractor Fans with Timer/ Automatic Shutter
5 x Vent Axia 254102 Wall Duct & Grille Vent Kits 100mm / 4 Inch (White)
2 x Vent Axia 254102 Wall Duct & Grille Vent Kits 100mm / 4 Inch (White)
3 x Vent Axia 254102 Wall Duct & Grille Vent Kits 100mm / 4 Inch (White)
3 x Vent Axia 427479 C Solo+ HT Extractor Fans with Humidistat and Timer 427479A
