The innovative paralleling capability of the Generac Parallel Kit for IQ3500 and GP3300I Inverter Generators allows you to meet higher output requirements by connecting two GP2500i models together to power your RV air conditioner, lights, cell phone chargers and other portable appliances at the same time. The easy access storage compartment in the back keeps power cables safe when not in use. The generator comes backed by a 90 day limited warranty for purchasing assurance.