Blauberg Plastic Gravity Shutter Vent - 100mm - Chocolate Brown - DECOR155X155-100GBROWN

This vent is a compact, wall-mounted gravity shutter made of durable plastic, designed for 100 mm (4″) duct connections. Its square external face measures 155 × 155 mm, giving a clean finish and enough surface to securely attach to an external wall. The gravity-operated shutter blades open when air is being vented out, and close automatically when the airflow stops, effectively preventing cold air or pests from coming back in.

Constructed for outdoor use, the vent features a weather-resistant build that stands up to rain and other environmental conditions. This makes it well-suited for use with extractor fans in kitchens, bathrooms, or utility rooms when you need an external termination point. The removable blades mean that it’s fairly straightforward to clean and maintain.

Aesthetically, the vent comes in a chocolate-brown finish, which offers a more subtle and natural look compared to standard white or grey vents. This is ideal for blending into darker brickwork or timber sidings, making it a practical yet attractive choice for modern exteriors.