iSi #1020 Stainless Steel Soda Siphon - 1 Liter (.75L max fill). Featuring a stainless steel mesh construction, this soda siphon uses the power of a CO2 charger (sold separately) to add the perfect amount of refreshing fizz to your water! Your customers will appreciate your "from scratch" seltzer, and you'll save money on expensive store-bought options! The head has a protective silicone grip with a fixed stainless steel valve and it includes a removable measuring tube for quick and easy cleaning. Plus for added safety, this siphon boasts a secure neck threading and pressure regulating system.