I just got a creamwhipper for Christmas (I asked Santa for one!).

The most well known brand is ISI - but mine is a KISAG which my husband (Santa) got from Williams of Sonoma. My Walmart DOES NOT carry them... but yours may. Check online for those brand names (google search on ISI or KISAG and you should find lots of info and ordering information).

It is heavenly to have the whipped cream made with Davinci syrups so it is VERY LOW carb. A little squirt on some SF cherry jello... Heaven!