The Unitex Wall Terminal Large Louvre integrates an external weather louvre, wall sleeve, and duct connection spigot into one compact unit. The satin anodised louvre offers full protection against the elements. This version features an 80mm wall sleeve, with an optional 280mm sleeve available, and accommodates spigot connections from 100mm to 400mm. Finished in epoxy powder coating, it is ideal for commercial ventilation installations. Stock reference: QSA315/80.