These unthreaded 16 gram CO2 Cartridges are designed to work with the compact CO2 injector system. You need 2 - 5 cartridges for each 5 gallon Cornelius keg. There are 6 cartridges per pack.

This product is only eligible for ground shipment within the contiguous United States.

California Proposition 65

⚠ Proposition 65 Warning: This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm.