Onyx M-24 In-Sight Rearming Kit for 3F Manual In-Sight Inflatable Life Jackets M-24 In-Sight Rearming kit for 3F manual In-Sight inflatable life Jackets (PFDs) 24 gram Co2 cylinder with bayonet Fits: M-24 manual In-Sight inflatable life jacket (model #1313) Item contains a Co2 cylinder and may not be available to ship to alaska or Hawaii