You might also be interested in these extractor fan non return valve 100mm.
Armar Trading LTD Extractor Fan Non Return Valve 100mm / 4inch, 125mm and 150 Ducting Pipe (100mm)
Armar Trading LTD
£ 12.99
free shipping
To the product (1 offer)
Bathroom Extractor Fan - 100mm - with Non Return Valve / Timer/ Pull Cord/ Humidistat. (Standard), White
Prostko LTD
£ 41.99
free shipping
To the product (3 offers)
15% off
FanGoFast Inline Extractor Fan 100mm/4 inch with Adjustable Speed Controller and UK Plug, Quiet Ventilation Fan for Bathroom, Kitchen, Office, Grow Rooms (Black, 100mm)
FanGoFast
£ 36.46
free shipping
Only:
46hrs
05min
54sec
To the product (2 offers)
AirTech-UK Extractor Fan Non Return Valve 100mm 4"
AirTech-UK
£ 7.99
free shipping
To the product (1 offer)
Cotarba 100mm 4" Grey Ducting External Air Vent Cowled Draught Flap Non Return Valve
LOGOK2K
£ 7.99
free shipping
To the product (2 offers)
Xpelair C4TS 4"/100mm Simply Silent Contour Extractor Fan Timer Delay
Xpelair
£ 44.99
free shipping
To the product (3 offers)
7% off
Vent Systems Brown 100 mm / 4" inch Exhaust Vent Cover - Louvered Dryer Cover - Vent Hood Cap - One-Directional Plastic Air Supply Grille - Non Return valve - Outlet Cowl Air Vent Grille
Vent Systems
£ 12.68
free shipping
To the product (1 offer)
VENTS 100mm White External Wall Baffle Vent | Helps Reduce Wind And Outside Noise At Extractor Fan Outlets And Ventilation System Terminations
VENTS
£ 16.09
free shipping
To the product (1 offer)
GOLDMAN SERVICE | Silent Bathroom Extractor Fan Powerful Anti Humidity Odors Non-return Valve | Diameter: 100 mm 12W
QUIET - White bathroom extractor fan with only 45dB(A), ensures effective ventilation without annoying noises, keeping your bathroom free of moisture and bad odors.
£ 24.24
free shipping
To the product (1 offer)
AIR 6 Cloud-100HT Silent Yet Powerful Bathroom Extractor Fan with Adjustable Humidity Sensor & Timer | Delivering 26.5l/s (95m3/h) | Wall or Ceiling Mounted Fan | White | IP45 | For 100mm /4" ducting
AIR 6
£ 69.00
free shipping
To the product (1 offer)
AC Infinity 100mm Backdraft Damper, One-Way Airflow Ducting Insert | with Spring-Loaded Folding Blades for 100mm Ducting in Range Hoods and Bathrooms Fans, 4-Inch
AC Infinity
£ 17.99
free shipping
To the product (1 offer)
Manrose 100mm Standard Mixed Flow Fan | Designed for domestic ventilation
Manrose
£ 58.30
free shipping
To the product (4 offers)
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Kair Connector with Backdraught Shutter 100mm - 4 inch Non-Return Damper Flap to Connect Duct Pipe or Flexible Ducting Hose
