Sold in groups of 4. These cartridges can be used with the Hawk CO2 system with the 3/8" threaded adapter. These cartridges have 3/8" threads. Price is per unit.
CO2 cartridges can only be ground shipped in the US.
Contact us for mailing address.
We are located in Monte Sereno, CA, US.
Phone: (855) 462-4883