First Alert's HOME1 Fire Extinguisher is UL rated 1-A: 10-B:C; it features durable all-metal construction with a commercial-grade metal valve and triggerMultipurpose fire extinguisher fights wood, paper, trash, plastics, gasoline, oil, and electrical-equipment firesUses mono-ammonium phosphate extinguishing agent; rechargeable by certified professionals after useMetal pull pin with a safety seal to help prevent accidental discharge and tampering; corrosion-resistant, easy-to-read, color-coded metal gauge; waterproof label with easy instructionsU.S. Coast Guard-approved for marine use10-year limited warranty