Great for powering two 13,500 BTU air conditioners with 1500 to 4000 Watts reserve. High performance plus great value. Fully enclosed gaseous generators are quieter and lighter than comparable generators in the market. Designed for highline Class A as well as trailer applications. Fully enclosed generator provides a smooth and quiet operation. Lower RPM improves fuel efficiency with lower noise levels. Retrofitable to the Onan® Marquis Gold (same footprint and bolt mounting pattern).