Jetanizer(TM) for the conversion of CO and CO2 to methane. Recommended altered fuel gas ratios: Makeup 24 mL/min, H2 32 mL/min, air 250 mL/min. This jetanizer uses a proprietary nickel catalys and is more resistant to oxygen and sulfur poisoning. This jet is only compatible with the GC-2030 and is only available in the 0.5 mm bore. Replacement for 220-94673-33 and 220-94673-35.