The Arezzo 100mm Extractor Fan Non Return Valve ensures that the air flows in one direction only. Prevents the effect of back draught which occurs during windy conditions or when the temperature outside the building is higher than the temperature inside.

Brand Name	Arezzo
Colour	N/A
Material	N/A
Manufacturer Model No	AZ100NRV
Wear Type	N/A
Type	Extractor Fan
Certifications Met	N/A
Country of Origin	N/A
Protects From	N/A
Waterproof	N/A
Number of Pockets	N/A
Diameter	96mm
Suitable for	100mm / 4" extractor fans
Prevents	backdraft
Guarantee	2 Year