Be prepared; choose ProLineâ„¢ dry-chemical extinguishers for your commercial fire-suppression needs. Crystal-clear step-by-step instruction label helps ensure effective use in a crisis. Easy-to-read reliable pressure gauge simplifies inspections. Smooth-action impact-resistant valve and lever ensure hassle-free operation. Lock-safe easy-pull release pin minimizes accidental discharges without compromising emergency-reaction times. Rechargeable. Material(s): Aluminum Cylinder; Monoammonium Phosphate; Fire Class: A:Com.Combustibles/B:Flammable Liquids/C:Live Elec.Equip.; UL Rating: 3A-40B:C; Charge Weight: 5 lbs.