Disconnect the quick connector of the black adapter, and then tighten the black adapter to the soda machine cylinder( must turn the knob on the top of the black adapter to the highest position,the whole process does not need to turn the adapter knob down to open the sodastream cylinder,If the adjusting rod press down 6mm wide valve pin, this will close the valve and CO2 cannot enter).
eBay
CO2 Bubbler Cylinder Canister Convertor for Sodastream Tr21-4 to Art Terra DUO Quick Connect Soda Machine Maker,Adapter Only
Aliexpress UK
Sodastream ART - only used a handful of times so in very good condition. Originally purchased from John Lewis.
eBay
Get your hands on this SodaStream Art Sparkling Water Maker Starter Kit, the perfect addition to your kitchen appliances. 1 x Sodastream Art Sparkling Water Machine. 1 x Sodastream FULL QUICK CONNECT Co2 Cannister.
eBay
Great working condition - used once, just no use for it. Comes from a smoke free home. Comes with 2 bottles with lids.
eBay
Soda stream machine in yellow, is working but could probably use a new gas can. Used but in good condition with no major defects. Any questions feel free to ask.
eBay
With various flavour choices available, you can easily mix and match to find your favourite combinations.
eBay
Hardly used. It was a birthday gift for my husband but he don’t like it and barely used. Come with a co2 gas (used below 5 bottle) and a bottle.
eBay
Includes machine, bottle and gas bottle Brand new in box, unopened.
eBay