Ideal for office areas Seamless aluminum or steel cylinders have chip-resistant epoxy finish. Reliable gauge for fast and easy pressure checks. Rechargeable units are easy to service and fit in all standard cabinets. Mounting bracket included. Strong forged aluminum valve. Body is designed for standard commercial applications. Fire Extinguisher Type: Rechargeable; Material(s): Nonmagnetic Aluminum Cylinder; Fire Class: A:Com.Combustibles/B:Flammable Liquids/C:Live Elec.Equip.; UL Rating: 1A-10B:C.