Ubbink universal insulated terminals are suitable for both tiled and slated roofs and come complete with a Ubiflex flashing. These units are suitable for roof pitches over 25 and for mechanical extraction. Vent area 17,750mm. Size Stack Terminal (mm) 1156 x 150. Flashing (mm) 500 x 600. Properties Stack termminals for tiles/slates. Insulated through to the cowl. Application Mechanical extraction. Minimum pitch of 25 degrees. Material Injection moulded/Vacuum formed/Ubiflex construction. Weight 3.85kg. Colour Black.