The North Face Activation Unit
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Keep your Patrol 24 ABS Pack or Powder Guide ABS Vest ready to use and always have a spare Activation Unit on hand. This activation unit consists of a canister of compressed nitrogen-which is used to inflate the bags because it resists icing at low temperatures-and a trigger that activates the canister. Steel cartridge canister should be handled with care and used according to instructions.
- The North Face