Tubo di canalizzazione da 95 mm Valvola di non ritorno Ventilatore estrattore per tiraggio posteriore da 4 pollici Ventola per tiraggio posteriore Deflettore del condotto dell'aria unidirezionale

ABS MATERIAL : Extractor fan accessories made of ABS material material , non toxic and tasteless，can be used long time ANTI RETURN WIND : Back draft damper designed to provide anti back draught , and fit in between solid plastic ducting , flexible ducting . CLOSED WITH GRAVITY : The rear ventilation baffle is closed by gravity , integrally formed to seal and leak proof , and light in weight , suitable for 4 inch pipes and can prevent cold air from backflow SPECIFICATION SIZE : Material : ABS plastic , caliber : approx . 95mm / 3 . 7in , width : approx . 80mm / 3 . 1in , height : approx . 118mm / 4 . 6in WIDELY APPLICATION : Draught fan light weight , suitable for 4in pipelines , Suitable for kitchen , toilet , bathroom , etc .