The SleeveDock® is a premium silicone sleeve holder for PU water cooling tubes in combination with push-in fittings. No heat-shrink needed. Compatibility List: - PF08 Series from RhinoTec - Aqua Computer plug&cool 8/6 Push-In Fitting - MDPC-X Cable Sleeves size "MEDIUM" Color Match Guide (guidance only): "Blackest-Black" Sleeve from MDPC-