GENERATOR GENMAX GM6000XiE 6000 Watt Open Frame Inverter Generator with CO Detect GENMAX GM5500i 5500 Watt Gasoline Inverter Generator with CO Detect GENMAX GM3500Xi 3500 Watt Open Frame Inverter Generator with CO Detect GENMAX GM2200i 2200 Watt Gasoline Inverter Generator with CO Detect ...