The Helios FK‑T 200÷150÷200 is a flat duct T‑piece made from galvanized steel sheet, featuring one outlet sized 150 x 50 mm and two outlets sized 200 x 50 mm. It belongs to the underfloor duct system tailored for domestic ventilation purposes. This duct system is corrosion-resistant and rigid, using external connecting sleeves to create smooth inner surfaces that minimize flow resistance and dirt buildup. The FK‑T 200÷150÷200 is an ideal component for concealed air ducts, ensuring efficient air distribution in new residential buildings.