[PARAMETER] Thread Size: G1/4", Body Size: 18mm x 30mm (OD*L), Shape: Straight. [MATERIAL] The material of the water cooling block fitting is brass (plated chrome), which is better heat dissipation and durability. [SEALING] The extension connector comes with a silicone sealing ring. [FEATURE] The surface of the tubing adapter is polished, with good appearance. [APPLICATION] The extended function is the mainly feature of the fitting. It is mainly suitable for various of the CPU water cooling system, such as the computer CPU and the games CPU, etc.