Source Metal Starter Kit features: 1 Source anodized aluminum covered machine,1 metal BPA free carbonating bottle, 1 60L CO2 carbonator, 1 variety pak featuring 6 flavors * Less expensive than store-bought sparkling water, with no bottles to recycle. * The intuitive Snap-Lock bottle mechanism easily locks the carbonating bottle into place with a single-push motion. * Customize your carbonation level. Strength of carbonation is visible through an LED display, providing instant, visual feedback. * The 60L CO2 carbonator (makes up to 60 liters) and 2 year unit warranty.