Alternatively, you can buy a conversion kit for your model off of Amazon. Then, spend a little extra up front and buy a co2 tank from a gas exchange or local brewery supply (usually quite a few places just use Google and call and ask if the have co2). I would get a 10 lb tank, think mine ran me 130 dollars when I got it. This saves you so much money. Those little co2 tanks sodastream sells do not last at all and they are expensive, like $30 for one or slightly cheaper when bundled. I fill my 10 lb tank once every 3 months? 4 months and I use it daily. When I exchange my tank it cost me roughly 20 bucks to get another 10 lbs and I'm good for another 4 months or so.
@IsItWorthIt-wr4nq I get mine from a brewery, so all their co2 is beverage grade. If you havnt made the conversion I highly recommend it, the savings are well worth it! Take care, good video!