We have 100mg, 500mg, 1g, 2g, 3g, 5g, 20g/ hr enamel tube ozone generator unit Features: High efficiency: narrow-gap discharge ( 0.5MM-0.8MM) , high ozone conversion rate, low noise. Medium: thin ( 0.2 ~ 0.8mm) , low energy consumption High production rate: High frequency corona discharge, power consumption 6 ~ 8KW.h/ kgO3 High concentrations : with oxygen resource it can be up to 120MG / L ozone concentration.