Sodastream Duo with Crystal bottels

The plastic bottles and the new glass bottle are a bit higher than the old "Crystal" bottles. So if you want to use these bottles in a Sodastream Duo, there are two ways:

• print an adapter for the glass bottles (https://www.thingiverse.com/thing:4618291)
• buy a small piece of plastic (https://sodastream.de/products/0-7-l-glaskaraffen-adapter-fur-duo)

I simply made the original Sodastream thing on my own and it works like a charm.

I made two types: one with a handle and one without.