The 4-A: 60-B: C Rechargeable Commercial Fire Extinguisher ideal for large commercial needs. Our largest multi-purpose use extinguisher fights flammable liquid; electric; wood; paper; fabric and other types offires. Durable metal head isdesigned to meet demanding commercial use requirements. If discharged; this unit can be recharged by a certified professional. Includes commercial strength wall mounting hook to keep unit secure. 12-year limited warranty. Meets UL standards. | First Alert 4-A:60-B:C Rechargeable Commercial Fire Extinguisher