Fzone dual big gauge DC solenoid CO2 regulator is a great way to inject your aquatic haven
• Customized aquatic 12v DC split-type solenoid, safer and more stable than AC solenoid, NEVER noisy.
• Precision needle valve allows you smooth adjust the out CO2 flowrate; bubble counter allows you easy read flowrate.
• All tools included, easy to operate and assemble with all the tools included
