13,000 (LPG) / 13,000 (NG) Enough power starting capabilities to start up a 4-ton a/c unit and provides 12 circuits of coverage Features an electronic governor to maintains steady speeds and eliminates voltage drop when loads are applied. Pre-wired, pre-packaged system makes installation easier than ever, saving time and money. Powerful OHVI specifically designed for generator demands. Most horsepower in it's class and long running life with full pressure lubrication and spin-on oil filter. Pre-packaged system includes: 100 Amp automatic transfer switch (NEMA 1) with 12 circuit load center, outdoor connection box, pre-wired conduits, flexible fuel line, composite mounting pad and installation guide., Manufacturer: Generac Power Systems