The most commonly used method for water cooling so far has been standard PVC hoses. Now, Alphacool offers another way to design a water cooling system. The HardTube variant brings more order to the system, creating a much more structured appearance. Brand new are the brass tubes, available in Black Chrome and Chrome, as well as acrylic tubes, carbon, and borosilicate glass. With the appropriate fittings and a very simple design, these can be connected or attached absolutely leak-proof. The PETG tube can be easily adjusted to the system with the right bending tool, without the need for additional angle pieces. To install the tubes into the system, they need to be cut to the appropriate length. PETG tubes require lower temperatures than acrylic to bend and are generally a bit more flexible and easier to handle. The perfect entry into the world of HardTubes.