Re-Arm Kit C - 33g Hammar Auto-Hydrostatic for MD3153, MD3154, MD3155, MD3157, MD3183, MD3184 & MD3188The Auto Hydrostatic Re-Arm Kit contains everything necessary to re-arm your Mustang Survival Auto Hydrostatic inflatable PFD after deployment. Regular maintenance can reduce the possibility of inadvertent inflation. Refer to your Owner's Manual for maintenance schedule. The Auto Hydrostatic inflator cap and body should be replaced before the expiry date on the cap passes. Use only Mustang Survival re-arm kits. Use of other re-arm kits may result in improper operation or failure to operate and will void the product's warranty.Re-arm kit includes:One 33 gram C02 cylinder/inflator body Inflator cap with plastic pull handle Metal key Re-arming instruction manualWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.