16 Gram 16g Threaded CO2 Cartridges Pack of 20

Pack of 20 16 Gram 16g 16 g CO2 threaded cartridges Pure clean compressed CO2 gas with no oil additive or preservatives. The date on the cartridge is manufacture date. The gas cartridges never expire and can be stored between sub-zero and 120F degree. Standard 3/8 threads. Precisely threaded cartridge neck and compatible with all threaded type CO2 bike tire inflators The cartridge is single use and not refillable. Threaded neck has no valve. The casing is made of steel and can be recycled. Pack of 20 cartridges