Alphacool's Enterprise Solutions family of new fittings are designed specifically for Alphacool TPV hoses. Thanks to a locking ring they have a very high tensile strength, which consists of a metal ring and claws with hooks in the hose. But they are not only about safety, but also for longevity. Being made of nylon, they are extremely durable and can be easily used with copper and aluminum parts in the water cycle because nylon does not react with other materials.