Non Return Valve for Ventilation Extractor Fan Backdraft Wind Shutter 125mm

ManoMano

General description The non-return valve is designed for ventilation extractor fans, allowing air flow in one direction while maintaining fan efficiency. It features a backdraft wind shutter that prevents unwanted airflow when the fan is not in operation. Technical specifications Diameter: 125 mm Material: ABS plastic Length: 21.5 mm Max. operating temperature: +40°C Compatibility and accessories Compatible with Awenta fans

Amazon

Universal backflow flap for retrofitting Diameter: 125 mm