Knightsbridge EXBDCKIT 100mm/4 inch Back Draft kit for Ceiling Mounted LED Extractor Fans, Black

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

Manrose MF100T in Line Extractor Fan with Timer 100mm 4 in Line Back Draught Shutter

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

The valve does not affect the passive ventilation in the room

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.

EXCELLENT QUALITY The neverest RK 4" ducting with backdraft shutter is very robust and durable. The housing is made of galvanized steel and the damper blades are made of aluminum. Two stainless steel springs are for automatic closing while the rubber ring ensures 100% closure and quiet closing.

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

Suitable for kitchen, toilet, bathroom, etc.

High-Quality Material The extractor fan vent cover is made from and ABS material, ensuring both safety and longevity. This superior quality guarantees it remains effective and reliable in any environment.

White Plastic Ducting Air Inlet Air Outlet with Gravity Shutters. 155mm x 155mm external dimension with 4 inch 100mm round male rear spigot on the back of the grille for indoor or outdoor use.

Male backdraft shutter is lightweight & compatible with ducting.

WIDELY USAGE Suitable for kitchen, toilet, bathroom, etc.

Duct Connector For use with the 100mm 4 Inch Round Ventilation Systems Backdraft Damper Stops Smells and Prevent Cold Air Coming through Your Extract Fan or Ducting

Ventilation Centre

Easy Installation The check valve is and can be conveniently integrated into your existing bathroom fan system. With its simple design and clear instructions, you can quickly and effortlessly set up the check valve and enjoy its benefits.

Closed with gravity, integrated forming seal leakproof

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.