Amazon.com: Sodastream Source 2 Pack Original White Carbonating Reusable Water Bottles 1 Liter BPA-Free Fits Only - Play, Source, Power, Spirit and Fizzi Soda Makers : Home & Kitchen
Amazon.com: SodaStream 16.9 Oz / 0.5 Liter White Carbonating Bottles 2-Pack for Source & Genesis Soda Makers - Lasts Up to 3 Years! : Home & Kitchen
Set of 2 plastic bottles, 1 L - SodaStream | KitchenShop