Rearming Kit, A-33, Auto In-Sight, 33gMfr #: 136200 701 999 13 33 gram CO2 cylinder with Halkey Roberts bayonet assembly Water soluble bobbin Fits A 33 IN SIGHT Automatic Manual inflatable life jackets You must verify that the CO2 cylinder is of the correct size and has not been previously fired The U. S. Coast Guard recommends purchasing an extra rearming kit to try out your inflatable life jacket and become familiar with its operation