The line of SGX Generators includes three models. The SGX3500 offers 3500 watts with a 4-gal. fuel tank providing eight hours of continuous run time; the SGX5000 offers 4900 watts with a 7-gal. tank providing about nine and a half hours of run time; and the SGX7000E offers 7300 watts with an 8-gal. tank providing seven hours of run time. Robin America Inc./Subaru. 800-277-6246.