Its unique blend of classic design and the latest technology makes the ISI Soda Siphon an environmentally friendly and a very compelling expression of refined living. Closed charger holder for easier insertion of chargers. Piercing system DBV for maximum convenience and safety. Removable measuring tube for easy cleaning – prevents overfilling. Safe and secure neck threading. Special food-tested interior liner. High gloss enamel. Use with soda chargers only. By adding water and a soda siphon charger cartridge, you get a carbonated seltzer water. Perfect for Italian Sodas.