4"/100mm Plastic Gravity Grille Extractor Fan Ventilation Duct Shutter Flap Non-Return Outlet Gravity Grill (Cotswold Stone)

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Product description
- Designed to terminate your extract duct to an external wall.
- External back draught shutters to reduce the effects of wind and rain.
- UV protected to prevent discolouring.
- Removable flaps for easy cleaning.
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