First Alert FE10GR Fire Extinguisher, White First Alert's AUTOMAR10 Marine Fire Extinguisher is UL rated 10-B:C; it features a durable metal head and commercial-grade valve and trigger Designed to fight flammable-liquid and electrical fires; uses sodium bicarbonate extinguishing agent Metal pull pin with safety seal to help prevent accidental discharge and discourage tampering Secure extinguisher mount, bracket, and strap are included; extinguisher is U.S. Coast guardapproved when used with mounting bracket Corrosion-resistant, easy-to-read, color-coded metal gauge; waterproof label with easy instructions