Quick & Easy Installation - Converts 150mm to 100mm round ducting. Suitable for rigid and flexible plastic ventilation pipes. Lightweight design allows fast, simple fitting for extractor fan and ventilation ducting systems. 150mm Female End - 150mm (6”) female spigot fits over compatible male duct fittings such as bends or connectors. A separate 150mm male connector is required when joining to straight round duct pipe. 100mm Male End - 100mm (4”) male spigot fits directly into 100mm rigid ducting or approximately 102mm flexible duct hose for a secure ventilation connection. Durable Plastic Construction - Made from high-quality PVC plastic. Temperature resistant from -15°C to +60°C. Suitable for indoor and outdoor ventilation ducting and resistant to corrosion. Multiple Applications - Ideal for extractor fans, cooker hoods, tumble dryer vents, bathroom and kitchen ventilation, inline fans, hydroponics and HVAC ducting. Maintains airflow efficiency and a clean appearance over time., Manufacturer: FANTRONIX