Characteristics: Sostream DUO, Terra specialized CO2 quick connector for large bottles Simple connection, including quick coupling, easy disassembly. Hose Length: 1.5m Hose Diameter: 6mm Accessories: gasket, rubber ring W21.8 for large CO2 cylinders: (Korea, Japan, UK, Germany, France, Poland, Norway, Switzerland, Russia, Ukraine, South Africa, Sweden, Chile, Czech Republic, Singapore,...) Package Contents: 1* External Co2 Tank Adapter Hose Kit Notes: 1. Due to different measurement methods, the measurement allows an error of about 2-3 cm. This situation is not a quality problem. (1 inch = 2.54 cm) 2. Due to different lighting and screens, the color of the product may vary from the color.