Fireboy-Xintex (MAxxxxNVC-F) Auto/Manual Fire Extinguisher, cubic feet coverage. Designed for and ideal for boats with engine rooms. The discharge is automatic, with a manual option. When in Manual, use with Fireboy Manual Discharge cable (Sold Separately!). Discharges at 175 F (79 C) or optional 155 F (68 C). Ready to install, each Fireboy system comes complete with a powder coated steel shelf bracket system, status indicator light, and owner's manual. Uses a FK-5-1-12 Fire Protection Fluid, which is a clean agent with a lower Global Warming Potential (GWP <1). Extinguisher Factory Mutual and USCG Approved.