Extended Drain Hose Set: The drain hose set contains a 1.5m (59") hose, a U-shaped bracket, an extension connector, a 30mm (1.18") adapter, and two hose clamps. Dimensions: The internal diameters at both ends are 20mm (0.79") and 23mm (0.9") respectively. With a 30mm adapter, it can be adapted to 30mm water pipes. The diameter of the white adapter is 2.1 cm (0.8"), suitable for an inner diameter of 20 mm. Premium Material: This durable and ultra-flexible drain hose is made of industrial-grade polypropylene, which is high-pressure resistant, non-toxic, and aging-resistant. The tube end is made of thick and heavy-duty materials, flexible and not easily deformed. Easy to Install: Simply connect the molding outlet to the tube end without tools. When extending the hose, insert and connect the adapter without removing the previously connected drain hose. (A 30 mm adapter is required when connecting a 30 mm tube)