There are many reasons why we think that OURSSON siphons for soda maker are the best, than all of our competitors. Here are some of the reasons... SIMPLE, AFFORDABLE, EASY - no recharge, just buy a new gas cylinders instead of used ones. TAKES UP LITTLE SPACE - you can store them in a kitchen drawer to have more space. HOME, AT WORK, IN THE COUNTRY, AT WALK ... OURSSON siphon is small and easy to use - you can take it with you and enjoy soda anywhere and anytime.