This Blauberg AH-10 external wall vent in black is designed for 100mm duct connections, offering a sleek and functional addition to any building facade. It is compatible with standard 100mm (4-inch) diameter ventilation ducting and suitable for both air intake and extraction in domestic, commercial, or industrial ventilation setups. The modern, weather-resistant design features a wall-mounted baffle vent with built-in UV protection to resist sun damage and reduce wind and noise intrusion. It also includes a removable cover with an integrated drip tray for easy cleaning and maintenance, and is constructed from non-combustible materials for added safety. This vent is a popular choice for use with MVHR, MEV, dMEV, and single-room heat recovery units.