Clear instruction label using graphics to show steps required to operate extinguisher. Easy-to-read gauge tells you fire extinguisher is charged and ready for use. Easy-to-pull safety pin. Clear instruction label using graphics to show steps required to operate extinguisher. Easy-to-read gauge tells you fire extinguisher is charged and ready for use. Easy-to-pull safety pin. Rust and impact resistant nylon handle. Safety Data Sheet . Suitable for use on Class A (trash, wood & paper), Class B (liquids & gases) and Class C fires (energized electrical equipment). The Recreational unit is fitted with a pressure gauge that provides at-a-glance status, is manufactured from lightweight aluminum and a tough aluminum valve assembly.