The Helios Fans RVB 80 is a durable duct connector crafted from galvanized sheet steel, ideal for linking two duct sections with an 80 mm diameter. Its corrosion-resistant design ensures long-lasting performance in HVAC systems. The RVB 80 allows for a secure and efficient connection between ducts, making it a practical component for small to medium-scale ventilation setups. This fitting ensures uninterrupted airflow and system reliability in both residential and commercial applications.