FX-781 N2 GeneratorIt generates Nitrogen gas at max. concentration of 99. 9% It provides N2 gas by compressed air which does not need electric power supply. Large capacity type accepts 2 soldering irons Features Compact N2 generator Highest concentration of nitrogen gas: 99. 9% Non electrical compressed air delivers N2 gas HAKKO FX 781 large capacity type accepts 2 soldering irons and capable of creating high concentration and large flow of N2 gas. Performance Table of