HG Power 100mm Vent Cover Outside Wall – Metal External Vent Cover with Non-Return Flap, 4 Inch Extractor Fan Vent Cover for Bathroom Fan, Dryer, Kitchen Cooker Hood (White)

Durable Metal Outdoor Vent Cover — This vent cover is made from strong powder-coated metal for long-lasting durability. Compared with plastic air vent covers for walls, the sturdy metal construction is more resistant to rust, UV exposure and outdoor weather conditions. Please note: this air vent cover is not designed for water drainage.
Magnetic Non-Return Flap for Efficient Airflow — Designed as an extractor fan vent cover, the cushioned non-return flap opens easily during ventilation and closes automatically to block cold air, wind and outside debris. When the flap drops, it rests on a foam strip that helps reduce impact noise and prevent rattling.
Removable Mesh Protection — The built-in removable mesh helps stop leaves, birds and larger insects from entering the duct. If finer protection is required, an additional fine mesh can be installed inside to block smaller insects such as mosquitoes without affecting airflow.
Ideal for Home Ventilation Systems — This external ve