Intermediate connector for roof fans. For a flow-optimized and easy-to-install connection between the SD base silencer and ventilation ducts. For installation in flat roofs. Article: SZ 25, Installation location: Roof, Housing material: Galvanized sheet steel, Weight: 7.4 kg, Weight with packaging: 7.42 kg, Suitable for nominal width: 250 mm, Width: 840 mm, Height: 840 mm, Depth: 180 mm, Width with packaging: 840 mm, Height with packaging: 840 mm, Depth with packaging: 180 mm, Ambient temperature: 100 °C