Circular Weather Louvre

Circular weather louvres provide a tidy external outlet or intake for round ducting, with angled blades that let air through while keeping rain and debris out. Made from durable, lightweight aluminium, they are the standard way to finish a round duct run where it exits through an external wall — extract fans, cooker hoods, ventilation intakes and exhausts all terminate neatly behind one.

Seven stocked diameters cover the common duct sizes: 100mm, 125mm, 150mm, 160mm, 200mm, 250mm and 315mm, so the louvre connects directly to the duct with no adaptor needed. Order by 3pm for next-day delivery on stocked sizes, with free UK mainland delivery on orders over £400 ex VAT.

If your opening is square or rectangular, see our square weather louvres (150mm to 1000mm) or the made-to-measure rectangular weather louvre, priced instantly online to your exact dimensions.