The  Auto/Marine 10-B:C Fire Extinguisher is suitable for use on Class B (liquids & gases) and Class C fires (energized electrical equipment). The Auto/Marine unit is fitted with a pressure gauge that provides at-a-glance status, is manufactured from lightweight aluminum and a tough aluminum valve assembly. Easy-to-read gauge tells you fire extinguisher is charged and ready for use. Clear instruction label uses graphic to show steps required to operate extinguisher.