Manual PFD 24g CO2 Re-Arming Kit - by NRSRe arm the NRS Matik or Zephyr Inflatable PFDs with the 24g CO2 Re Arming Kit. For extended trips, be sure to have a spare kit and prepare for the unexpected. Includes one 24 gram replacement CO2 cartridge and arming indicator tab. Flying with your Inflatable PFD? According to the Transportation Safety Administration's (TSA) website: "You may bring a life vest with up to two CO2 cartridges inside, plus two spare cartridges in your carry on or checked