Leland Mr Fizz 100 Pack - 8 Gram C02 Seltzer Water Cartridges For Use With Hamilton Beach Fizzini, and all 1 Liter / Quart Soda Siphons Durable non threaded weld sealed stainless steel construction Super-charged cartridges with 8 grams of pure CO2, ideal for vintage guns Compatible with Fizzini, ISI, LISS, Mosa, and all Hamilton Baeach hand held soda makers. Also great for antique pellet gun and toy car propellant. Not compatible with the Soda Sparkle and Isoda Drinkmate.