1. flexible: With this flexible drain hose, you can achieve a tight and clean drain even in difficult structural conditions under a sink and washbasin. The union nut made of aluminum, including a seal, also ensures a long service life. 2. Extendible: The drain hose is flexible and can be adjusted to a total length of 420 to 935 mm according to your needs. This allows the drain hose to be flexibly extended and installed up to a maximum length of 93.5 cm. Odor trap: You can create an odor trap with a Ushaped course of the drain pipe, which helps prevent unpleasant odors in the bathroom. 3. Odor control technology: Our product is equipped with a builtin odor prevention mechanism that automatically closes the odor trap when no water drains, effectively preventing unpleasant odors from escaping. 4. Quick installation: The drain hose can be installed without tools in just a few steps. Thanks to the quick disassembly feature, the drain hose can be cleaned quickly and easily at any time.