The Helios VS 30/15 is a compact flexible duct connection designed for optimal installation flexibility and noise isolation. It includes double-sided flange frames made of galvanized sheet steel, ensuring a durable and secure attachment to duct fans or accessories. The central elastic fabric sleeve is dimensionally tailored to absorb vibrations and compensate for minor installation misalignments. This component helps maintain acoustic comfort and system reliability in various ducted ventilation setups.