Specifications: Made of high quality material, the cylinder refill adapter is durable and practical to use. This product fits home soda maker beverage machine. It is safe and easy to control and also provide an inexpensive way to fill for soda at home. Item Name: Cylinder Refill Adapter Material: Copper Thread: TR21.4 Type(Optional): W21.8-14 to TR21.4 or CGA320 to TR21.4 Style(Optional): without Bleed ValveandGauge or with Bleed Valve or with Bleed ValveandGauge Features: Durable, Portable, Easy to Use Tube Length: 50cm or 19.68" (Approx.) Notes: CGA320 is applicable to USA, Brazil, Colombia, Philippines. W21.8 is applicable to KOR, Japan, UK, Germany, France, Poland, Norway, Switzerland, Russia, Ukraine, South Africa, Sweden, Chile, Czech Republic, Singapore. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Cylinder Refill Adapter Or 1 x Cylinder Refill Adapter 1 x Bleed Valve Or 1 x Cylinder Refill Adapter 1 x Bleed Valve 1 x Gauge Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.