INSIDE COUPLING LYPN D 400

Onnisen air duct internal joints feature a factory-installed double seal made from homogeneous EPDM rubber. The seal withstands rigorous handling and temperature fluctuations. Thanks to the seal, the system joints are extremely tight. Features

• nominal duct diameter: 400 mm
• material: galvanized steel

Onnisen ventilation products combine high quality, easy installability, energy-efficient and environmentally friendly design. Together with high service levels, they deliver significant added value to customers. Also explore other high-quality Onnisen products and the full range of Onnisen ventilation products either in our online store or at our Express showroom. This product description is an automated translation of the original Finnish description.