100 mm (4”) White External Wall Vent Cover – Wind & Sound Reducing Baffle with Draft Exclusion for Extractor Fans & Heat Recovery. Suitable for external wall installations in bathrooms, kitchens, utility rooms and whole-house ventilation systems.
Xpelair 4 inch 100mm External Wall Vent Gravity Grill Black
Stainless Steel External Wall Vent Cover 100mm 125mm 150mm Air Vent Grille Duct
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FANTRONIX 100mm Cowled External Wall Vent Grille Hooded Duct Cover Flap
6" 150mm Grey External Wall Vent Grille Mesh Louvre Vent Cover Outlet Ducting
