The Unitex Wall Terminal Large Louvre integrates an external weather louvre, wall sleeve, and duct connection spigot into one convenient unit. The satin anodised louvre provides full protection against the elements. The terminal includes a 280mm wall sleeve section, with an optional 80mm sleeve available, and spigot connections accommodate 100mm to 400mm ducts. Finished with an epoxy powder coating, it is ideal for commercial ventilation installations. Stock reference: QSA125/280.