The DEWALT DXGNR4000 is designed with the professional in mind. The generator is powered by a premium 223 cc DEWALT engine with low oil shut off which protects the engine from damage. Onboard CO-Protect Technology automatically shuts down the generator if CO levels become unsafe or rapidly increase. This generator is equipped with covered outlets to protect from elements and features never-flat wheels for maximum portability and durability. The 3.4 Gal. steel fuel tank provides up to 10-hours of runtime at 50% load. The Hardened 1 steel tube frame is job site tested for superior durability and strength. The DEWALT DXGNR4000 Portable Gas Generator Guaranteed Tough.