Supplies the gas requirement of up to 5 to 6 FIDs. Produces UHP zero air from house compressed air (< 0.05 mg / l THC) and 99.9995 % pure hydrogen in one enclosure. Eliminates zero air and hydrogen cylinders from the laboratory. Increases the accuracy of analysis and reduces the cleaning requirement of the detector. Recommended and used by many GC and column manufacturers. Payback period of typically less than one year. Automatic water fill standard. Silent operation and minimal operator attention required.