Surface treatment silver oxidationProcessing vacuum aluminum brazingLeak rate of less than 5X10-6 mbar.l/s.The internal flow path is double U-shaped waterway.Internal flow channel extrusion forming,brazing parts into a wholeApplicable to computer CPU water, industrial inverter driver, head cooling, industrial control cabinet cooling.Processing: Vacuum Aluminum BrazingSurface Process: PolishingColour:SilverMaterial:AluminiumSize:240 * 40 * 12 mm / 9.4 * 1.6 * 0.5 inConnector External Diameter: 9.3mm (widest part)Compatible Tube: I.D 7-8mmPackage Contents:1 * Water Cooling BlockOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.