... min, 0--4bar 4 low price Nitrogen Generator Generator Introduction:SPN-300/ 500/ GCN-1000 Nitrogen generator use water electrolysis technology, could meet ... gas chromatography requirement.SPN-300 /500/ GCN-1000 nitrogen generator use pure air as source, use electro-catalysis method ... gas output quality, guarantee GC basic line stable.3. Equipped with safety parts, sensitive and reliable, auto anti ...