Byrna CO2 8gr Cartrige 9ct + 1 Oiler

WHAT'S IN THE BOX: (10 ct.) 8g CO2 Cartridges. Including 9 standard 8g CO2 cartridges and 1 CO2 cartridge including oil for maintenance.
EASY TO USE: Simply install the oiler cartridge like any other 8g CO2 cartridge and fire away! The CO2 with Oil cartridge does all the work while you fire.
CAPACITY: Each CO2 cartridge will be good for 15-20 rounds.
PLEASE NOTE: This pack of CO2 cartridges includes one marked cartridge that contains CO2 + Oil. We recommended using this CO2 + Oil cartridge every 5th cartridge to maintain lubrication and optimal performance. The oil cartridge is not always labeled and is placed in the box facing the opposite direction as the other 9 cylinders. The oiler cartridge can be used just the same as the other CO2 cartridges
COMPATIBILITY: 8 Gram CO2 Cylinders are compatible with the Byrna SD / EP & HD Models.
Not compatible with Byrna LE, SDXL, HDXL or Launchers with Byrna Boost Installed.