Sodastream is fantastic for making your own sparkling water easily at home. You can add Sodastream fruit drops flavor essence or a small amount of juice (we like Tropicana cranberry cocktail along with fresh squeezed lemon) for a healthy, low calorie soda with no artificial colors, flavors or preservatives and no sugar (plain or essences) or low sugar (10% fresh fruit juice). CO2 cylinder cartridge comes in 2 sizes and empty ones can be exchanged at stores such as Bed Bath & Beyond for a discounted price on a new cartridge. Click the photo above for more details and to check out other Sodastream products. NOTE: We do NOT recommend Sodastream sparkling drink mixes as they have artificial ingredients and sweeteners.