BLUESTORM CO2 Re-Arm Kit 33 Gram Cylinder Cartridge Compatible with Stratus 35 USCG Automatic Life Jacket Personal Flotation Device (PFD) Features: Re-arm kit is appropriate for use with Bluestorm Stratus 35 automatic life jacket/personal flotation device (PFD) 33 gram CO2 cylinder with 1/2"" thread Halkey-Roberts V80040 Yellow Bobbin, Leland re-arming kit part number: V95000-85202Z Easy-to-follow re-arming instructions included in this kit