Make safety your top priority, and choose Kidde ProPlus? Line commercial-grade dry-chemical extinguishers. Step-by-step instruction label featuring graphic illustrations brings the most inexperienced user up to speed in seconds. Large, easy-to-read pressure gauge simplifies charge checks. Impact-resistant valve and trigger mechanism help ensure trouble-free performance. Easy-pull safety pin prevents accidental discharges without slowing you down in an emergency. Rechargeable. Material(s): Steel; Monoammonium Phosphate; Fire Class: ABC; UL Rating: 20-A, 120-B:C; Charge Weight: 20 lbs.