The Alphacool HF quick-release coupling set TPV with two G1"4" external threads can be screwed directly to components. Instead of mounting the quick-release fastener on a hose via connections, it can now be mounted directly on a radiator or radiator in a space-saving manner. Nylon is extremely stable and the entire quick release with a total weight of only 20g is ultralight. In addition, nylon is not conductive. This means that you don't have to worry about whether the quick release may come into contact with components during installation. The temperature resistance of nylon is also extremely high. The connection is compatible with all previous quick-release fasteners with rotary closure. Furthermore, it offers a higher level of security compared to a click-lock, as it cannot jump up due to incorrect handling. The fixed screw connection cannot be loosened without direct action. This way, the quick release is always firmly closed. When closing the quick release, in addition to the normal O-ring, another O-ring is used for safety. This is intended to protect against two possible problems. If the first O-ring has a defect for any reason, a second O-ring secures the quick release so that the water cannot escape. When opening the quick release, a defect on the first O-ring can be easily detected. If you accidentally do not turn the thread 100% when closing the quick release, then the second O-ring can also prevent leakage. The Alphacool HF quick release clutch set is compatible with all Alphacool Eisbaer AIO systems, all ice storm sets and the external cooling solution ice wall. Specifications: Dimensions ( L x D): 65 x 28.2 mm Material: Nylon Connections: 2 x G1/4" AG Thread length: 5 mm Closure: Safety-rotary closure