100mm In-line Extractor Fan Vent Back Draught Shutter With One Spring And Two Flaps

Material PVC.

Stop smells and prevent cold air coming through your extract fan or ducting.

Pipe cover flap, butterfly valve. Especially suitable for inserting into 100mm round pipe or 102mm flexible hose. Perfect for use in Tumble Dryer, bathrooms, garages, air conditioners, extractor fan, extractor hoods, Hydroponics, In-Line Extract Fans, and ventilation systems

Suitable for bathroom fans with a diameter of 100mm 3.94''

The valve does not affect the passive ventilation in the room

Constructed with a male spigot, this backdraft shutter boasts a durable white plastic exterior, ensuring reliable performance in extractor fan systems.

HOME IMPROVEMENT Pipe cover flap, butterfly valve. Especially suitable for inserting into 100mm round pipe or 102mm flexible hose. Perfect for use in Tumble Dryer, bathrooms, garages ,air conditioners, extractor fan, extractor hoods, Hydroponics, In-Line Extract Fans, and ventilation systems

Size and technical data Size - 100 mm 3.93 Inch; Features - For Round Ventilation Systems, Straight Connector, with Backdraft Shutter Non Return Valve One Way Valve Performance - up to 250m3 h Connection type - male spigot.

Efficient ventilation tool This air-regulating return air retarder is designed to improve ventilation by releasing polluted air from the automatically closing damper to prevent outdoor air from returning.

White Plastic Air Vent Diffuser with fixing ring is suitable to connect to 100mm 4 inch flexible hose using a hose clip.

CLOSED WITH 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

Size 100 to 80 75 mm

Note The cowl comes with slightly bent sides. This is to enable easy fitting into the back plate. You will need to click fit it back into place.

Dimensions 158mm wide x 158mm high. Spigot is 99mm diameter (for connection to 100mm ducting) and projects for 80mm beyond installed surface.

30-day refund, 5 years warranty, 24 7 customer service, and patented design.

High-quality white powder-coated metal 4 inch 100mm adjustable ceiling air supply vent.

Please note that 4" 100mm shutters have 1 spring and not 2.

Diameter 125 mm

Quiet Extractor Fan Bathroom our 4 inch bathroom extractor fan runs much quieter than the others and does not disturb you. Ideal for greenhouses, windowless bathrooms, bathrooms, sheds, kitchens, basements, hobby rooms, toilets, workshops, living rooms, attics, showers, restaurants, pet rooms, garages, smoking rooms, offices, exhaust rooms and damp rooms. Designed for small spaces, lighter and thinner, closer to your needs and life.

Function the exhaust air backflow flap is universally applicable in all standard round ventilation pipes and flex pipes according to DIN EN 1506. The backflow flap prevents the exhaust air from flowing back or the inflow of cold outside air. The flaps open when the fan blows the exhaust air outwards and closes automatically as soon as the airflow breaks off.