Primo Flavorstation Home Beverage Maker FSS Freedom 200 (Black) Designed to Dispense Carbonated Water Directly into a Glass, Flavors Beverages to Your Preference Requires No Electricity  Ideal for Everyday Use FSS Technology allows you to choose the sparkling intensity of your beverages by turning a dial on the appliance. CO2 release is controlled so none will go to waste. The FSS technology is also significantly quieter than competitive brands. Utilizes Full-Size Primo Sparkler 60L CO2 Cylinder Included-Exchangeable CO2 Cylinder Fast Mounting CO2 Connection  Quickly Connect Cylinder, No More Repetitive Threading