The easiest way to get your "craft beverages" on tap without having to drill a hole through your fridge.
This kit includes:
This kit comes standard with the sodastream adapter because it is by far the most popular. But you can purchase an extra paintball tank adapter or a CGA-320 adapter for a full size tank.
If you want to have the same fancy tap that comes with the Pro Tap Kit, this is all you need Intertap Kit
Here is a video comparing all the different kits, this link is queued up to the Fridge Tap Kit.
Here is another video showing going into more detail: