The Helios FK‑B 200 is a mounting bracket engineered for use with the FK 200 flat duct system. Made from galvanized sheet steel, it offers a robust and corrosion-resistant solution for securely fixing flat ducts in underfloor installations. The duct system features a flat, rigid construction that is non-combustible. Connections utilize external connecting sleeves to create smooth inner duct surfaces, which help reduce airflow resistance and prevent dirt accumulation, ensuring efficient ventilation performance.