Spare CO2 Carbonator Refill Adapter Quick Replacement Adapter with Pressure Gauge Release Valve for DUO ModelFeature:1. Scope of application: It is an adapter connecting soda machine and carbon dioxide cylinder. Suitable for duo, for Terra, for art.2. Product material: The replacement CO2 adapter is made of aluminum, rubber, ASA material, which is corrosion-resistant, durable and safe to use.3. Good features: CO2 adapter carbonator filling station has good sealing, oxidation resistance and rust prevention, easy to fill CO2 into the siphon.4. Threaded interface: carbon dioxide tank large thread DIN477 or JIS m22-14 (Europe TR21-4, W21.8-14). Just a few simple steps, your soda carbon dioxide machine can use this quick adapter.5. Applicable countries: South Korea, Japan, UK, Germany, France, Poland, Norway, Switzerland, Russia, Ukraine, South Africa, Sweden, Chile, Czech Republic, Singapore. Specification: Item Type: Carbonator Adapter CO2 Filling Station Material: Aluminum, Rubber, ASA Color: As Pictures Shown Weight: Approx. 164g / 5.8oz Interface: 8mm External Quick Plug Application: for DUO, for Terra, for Art Threaded Interface: Carbon Dioxide Tank Large Thread DIN477 or JIS m22-14 (Europe TR21-4, W21.8-14 )Applicable countries: South Korea, Japan, UK, Germany, France, Poland, Norway, Switzerland, Russia, Ukraine, South Africa, Sweden, Chile, Czech Republic, Singapore Package list: 1 x connector 1 x rubber ring 1 x user manual