HydroGen PRO CO2 Generator
The HydroGen PRO CO2 Generator easily maintains optimum CO2 levels, and its water cooling feature keeps it from adding unwanted heat to indoor gardens. It uses a water-cooled heat exchanger to cool nearly 90% of the heat produced by burning propane, and it includes an automatic relight function in case of ignition failure, insulated internal tubing to protect it from excessively humid environments, and an extra power outlet for supplemental cooling accessories.