Review on 🐠 FZONE DC CO2 Solenoid Valve: Ideal Magnetic Valve for Easy-to-Install Aquarium CO2 System Regulator and Optimal Water Plant Growth in Fish Tanks by Vania Puckett

This works exactly how I need it, it plugs into a smart socket and turns on/off the baking soda/citric acid CO2, when i need it I see a lot of feedback that the valve is leaking. I experienced the same thing, but then I realized that my input/output is the opposite. It is not labeled and CO2 pressure can cause the valve to open if misadjusted. You want the gas pressure to open the valve, not close it. If you have a slight leak when it's off, try flipping the inlet/outlet!