Connecting individual water-cooling components requires extra attention to detail in regards to choosing the correct fittings as well as the correct number. Assembling a cooling loop with the incorrect fittings to hand or not enough of them can quickly turn into a frustrating experience - as well as holding up your build. This is a black adapter used for extending connections within water-cooling loops. The adapter is a coupling for connecting two hard tubes with outer diameters of 16 mm at a 90 degree angle. The sleeve nuts are made from aluminium and two rubber rings ensure a watertight seal.Specification:Material: Aluminium, BrassColour: BlackAngle: 90 DegreeFittings: 2x 16 mm