Type F Automatic and Manual Inflatable Rearming Kit includes everything necessary to rearm Mustang Manual Inflatables after deployment. The automatic inflator bobbin on all automatic PFDs should be replaced on a regular basis. Kit contains: CO2 cylinder, 33 g. Green inflator pin Bobbin for use only with automatic inflatable PFDs Instruction manual This rearming kit replaces discontinued kits MA7170, MA7174 and MA7270.