Features Easy Refilling: The soda refill adapter can connect the soda maker to an non siphon 5lb, 20LB or 50lb commercial CO2 tanks that has a CGA320 outlet valve. Reliable Performance: The soda machine connector with corrosion resistance, high temperature ductility and low magnetic permeability to withstand up to 100 ℃, 212℉. Premium Material: The soda refill adapter is made of stainless steel, brass and aluminium materials for better gas tightness when working under 4500 psi pressure. Ideal Matching: The soda machine connector is also equipped with a 60in long hose, which enables firm connection without leakage to largely simplify the refilling. Rubber Washers: The soda refill adapter using food grade rubber material, the washer is safe to use and will not transmit chemical taste to carbonated water. Specification: Item Type: Soda Refill Adapter Material: Stainless steel, brass, aluminium.  Connector Specifications: CGA320 Package List: 1 x Soda Refill Adapter 2 x Dustproof Cover 2 x Large Washer 1 x Small Washer 1 x User Manual Package List 1 x Soda Refill Adapter 2 x Dustproof Cover 2 x Large Washer 1 x Small Washer 1 x User Manual