Eiszapfen extension 20mm G1/4 outer thread to G1/4 inner thread - white 17568 Alphacool's Eiszapfen is the high-end version of the already proven connectors and meets all the requirements placed on a connector with its high-flow, shape, processing and colour. Specifications: Material Brass Colour White Hight 20 mm Thread G1/4“ Thread Length 5 mm Diameter 18 mm Weight 28 g