Functions: Made from high-quality metal material for maximum durability. Easy to install and use. The do CO2 filling is used do CO2 filling do of the Sodastream tank. Adjustable valve pin ensures compatibility with any version of cylinder valve. Precise design, resistance to corrosion and wear. Specification: Material: metal Internal thread: TR21-4 External thread: W21.8-14 Color: Black, Silver (Optional) Optional Type: # 1: Black adapter with meter #2: Black adapter without meter #3: Silver adapter with meter #4: Silver adapter without meter Name: air oxygen flow meter Connection Type: 8mm Hose Control valve: with valve Body Material: PMMA Pressure: 0,1 MPa Accuracy: four degrees, 0,5% Temperature: 0-60 Float Material: Agate Ball Seal Material: Silicone Rubber Height: 93 mm Measurement range: 0,1-1,5 l List of packages: 1 * do CO2 filling adapter 1 set * akcesoria do key seals