Designed for connecting two sets of internally threaded water-cooling hardware and enabling length adjustment between 16mm and 22mm. ^^ For Cross-Fire/SLI or Direct-Connection Application. ^^ The telescopic fitting is constructed from durable brass, guaranteeing longevity and excellent resistance to wear and tear within the cooling system. ^^ Equipped with a universal G1/4" threaded interface, ensuring compatibility with most radiators and components across PC water cooling systems for easy DIY installation. ^^ Features an embedded silicone O-ring and precision-engineered threads to provide a reliable, long-term leakproof seal under various installation angles.