LTL Controls CO2 GeneratorThere are 2 distinct types of LTL Controls CO2 Generators available, those for Propane and those for Natural Gas. These are offered in either 8 or 10 burner configurations. You can then choose between High Altitude (above 5,000 ft) and Low Altitude (below 5,000 ft) models of each. All generators come with the correct regulator and hose, along with pre installed, clean burning brass burners. All units are equipped with features like a safety tip over