The Helios Fans RVB 125 is a robust connector designed for joining two sections of ventilation ducting with a 125 mm diameter. Constructed from high-quality galvanized sheet steel, it offers excellent durability and resistance to corrosion. This inline coupling is ideal for HVAC installations where a seamless, secure connection is required between duct segments. Easy to install and compatible with standard round ducting, the RVB 125 provides a dependable solution for both residential and commercial ventilation applications.