The 4-A:60-B:C Rechargeable Commercial Fire Extinguisher is intended for large commercial areas. First Alert's largest multi-purpose use extinguisher fights flammable liquid, electrical, wood, paper, fabric and other types of fires. The durable metal head is designed to meet demanding commercial use requirements. This commercial fire extinguisher can be recharged by a certified professional, ensuring lasting protection. A commercial strength wall mounting hook has been included and will keep the unit secure. Meets UL standards. Made of a durable metal head that is designed to meet demanding needs. It also features a metal pull pin, with a safety seal, that deters accidental discharge and discourages tampering. The color coded gauge is easy-to-read, corrosion-resistant, and provides accurate measurement. Includes easy to follow, 4-step instructions right on extinguisher. The label is chemical resistant and water proof, so you do not have to worry about it deteriorating. Class A, B & C Fire Extinguishers are designed to put out three types of fires: combustible fires, flammable fires and electrical fires.