Use to fight basic fires common to the home involving trash, wood, paper (Class A), liquids and gases (Class B), and electrical equipment (Class C) Lightweight: Durable, corrosion-resistant aluminum cylinder with mounting bracket included Easy to read pressure gauge tells you when the fire extinguisher is charged & ready for use Tough, aluminum valve assembly, rust and impact resistant handle, & easy to pull safety pin 4 pounds of monoammonium phosphate fire-fighting agent in the tank; see a professional for recharging after use