100mm metal flange ventilation duct fitting for duct fans and flange adapters.

Universal Flanged Wall Fittings: Designed specifically for ventilation systems, these fittings offer a wide range of diameters. High-Performance Ventilation: These fittings offer low air resistance, ensuring quiet, comfortable, and efficient ventilation. Quick and Easy Installation: Their simple installation allows for easy integration into any indoor ventilation system. And ensures efficient ventilation. Wide Compatibility: Ideal for use with dryer vents, bathroom or kitchen exhaust fans, hydroponic systems, ducted extractors, or kitchen hoods.