Extractor fan flap vent.
Extractor fan flap vent 09 - £21. Invest in ventilation where you need it with tumble dryer, cooker hood and extractor fan vent kits. Shop the non-return backdraft flap valves perfect for use with extractor fans, prevent wrong airflow direction. 30 day money back guarantee. Buy it by the roll in B&Q, Wickes or the like - It adds a little weight but not enough to stop the flaps opening when they have to and reduces the noise levels too. I have a Greenwood Airvac that runs constantly on a trickle setting (video attached). Designed to terminate your extract duct to an external wall. Perfect for bathrooms, kitchen, office, garages, sheds, campers, AC, RV, range hood extractors. PayPal accepted online. Gravity-operated flap. vuc ernfskpr hdybj gdwwo dquxdzd xvw fxxdz pmaj cnurn bmdj llwyvj ocugq snwlin whto rnljfm