Useful if you need a longer hose than one provided with your machine. Diameter about 15 cm. Length about 5 m.
130/150mm Portable Air Conditioner Exhaust Hose Flexible Vent Duct 1.5m/2m
75mm x 2.5m Flexible Air Duct Hose with Easy-Fit Soft Connector for Ventilation
Flexible Telescopic Air Conditioner Exhaust Hose Mobile Air Conditioning 1.5M
Exhaust Hose Tube Pipe For Portable Air Conditioner Vent Duct Flexible
