100mm (4") Back Draft Shutter – Inline Extractor Fan Ducting, White, UK Made
100mm (4") Back Draft Shutter – Inline Extractor Fan Ducting, White, UK Made
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100mm (4") Back Draft Shutter – Inline Extractor Fan Ducting, White, UK Made

4.3 stars out of 29 reviews
(4.3)|
125 ratings

About this item

Stop cold air coming back through your extractor fan with this back draft shutter.

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

It's 100mm (4 inches) in diameter, made of white plastic, and designed for inline ducting.

100mm Ducting Backdraft Shutter

It lets air out but not in.

IPower 4 Inch Shutter Back Draft Blocker, One-Way Airflow Ducting Insert Backflow Preventer With 2 Inline Springs Loaded Folding Blades 4 Backdraft Damper For Hvac Extractor Fan Vent Range Hoods

Made in the UK, unbranded but solid.

Manrose In Line Backdraught Shutter 100mm/4Inch Extractor Fan Draught Shutter | DIY at B&Q

Perfect for bathrooms, kitchens, or any ventilation system.

Extractor Fan Back Draught Shutter 100mm In-line Vent 4 Inch Ducting

Simple, effective, and easy to install.

Pipe Draft Blocker Backdraft Damper Ventilation Du... – Grandado

$ 5.75
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4.3 out of 5 stars
stars125 ratings29 reviews
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