Thermaltake Pacific DIY LCS Black G1/4 90 Degree Adapter Fitting (CL-W052-CU00BL-A) High Flow Leak Free Design: The fittings allow proper connection to G1/4" ports, securing properly to any cooling components Black Coating Brass Fitting G 1/4" Port 360 Degree Rotation Design: Delivers easier tube routing, working around obstacles in the system Pre-installed O-Ring: Prevent coolant from leaking