Description
The non-return valves provide air flow in one direction only, without reducing significantly the efficiency of the fan.

- Diameter: 100mm, 120mm, 125mm or 150mm;
- Material: plastic.
Non Return Valve for Ventilation Extractor Fan Backdraft Wind Shutter 100-150mm
Customer Information
- We ship all orders within 24 hours after order being placed (All orders made before 2PM during working day will be shipped on the same day);
- Shipping cost within UK is £4.99 regardless to the quantity (Royal Mail Tracked 48 service);
- Express delivery option is possible at extra fee (£6.99 via Royal Mail Tracked 24 service);
- You got right to return your order in 30 days without providing any reason (in new condition).
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