6 to 4 Inch Duct Reducer, Galvanized Steel, for 4/6 Inch Ducting HVAC Ventilation System-Black

[New & Improved Design] The HONGUAN 6 to 4 inch duct reducer is built with galvanized steel for durability and enhanced airflow efficiency. It allows seamless connections between 4-inch and 6-inch ducts, making it ideal for HVAC ventilation systems, extractor fans, and hydroponics setups.[Perfect Fit & Size] One side features a 150mm (inner: 148mm) female spigot, which fits into 6-inch ducting, while the other side has a 98mm (inner: 96mm) male spigot, designed for 4-inch ducting.[Versatile Applications] Compatible with air-cooled hoods, bathroom exhaust fans, kitchen ventilation, garages, attics, and HVAC systems, this duct reducer is an essential component for effective airflow management.[Easy Installation] No tools required! Simply connect flexible or rigid ducting, and for a secure fit, pair it with HONGUAN hoses and clamps (included with purchase).[Risk-Free Purchase] We stand behind our products! If you’re not satisfied with this 6in to 4in duct reducer, enjoy free replacements or a full refund.