The Unitex Wall Terminal Large Louvre combines an external weather louvre, wall sleeve, and duct connection spigot into a single unit for easy installation. The satin anodised louvre provides full protection from the elements. This model features a 280mm wall sleeve section, with an optional 80mm sleeve available, and supports spigot connections from 100mm to 400mm. Finished in epoxy powder coating, it is ideal for commercial ventilation applications. Stock reference: QSA200/280.