16 gram food-grade Nitro Cartridges, used in the uKeg Nitro Cold Brew Coffee Maker.
(5) Units per box -- enough for 5 coffee batches.
PLEASE NOTE: We cannot ship gas chargers to residents of Alaska, Hawaii or Puerto Rico. Orders to these areas will not include CO2 or N2O cartridges. Must be at least 18 years of age to purchase.