This double nipple from Koolance can be used to e.g. connect multiple adaptors to each other. It also allows certain water blocks to be interconnected. The double nipple has an O-ring gasket on both ends, offering maximum safety for your system. As the thread is only 4mm long (without O-ring), the connector is compatible with virtually all components. The middle piece is only 3mm thick and knurled, making it perfect for tool-free installation.

Deep black, Koolance's answer! In the highest quality, just as with every product from Koolance. The black finish covers every bit of the surface and looks like it has been cast into the metal. The unique surface finish makes these fittings a true eye-catcher for your system!

Detailed dimensions can be found here

Technical specifications:
Material: Nickel plated brass
Colour: Black
Thread size: 1/4"
Thread length: 4mm each

Extent of delivery:
1x Double nipple