This product has a lot of leaks. The solenoid failed shortly after I used it. The valve is leaking so there is no way to completely shut off the CO2 in my tank. There are other models that are cheaper online, but I recommend buying a theft bottle kit and putting it together correctly to get started. The diffuser does not work as expected, mainly because it is very cheaply made. It's more or less an air stone. Unloading makes big bubbles to properly unload into the tank. The air hose is not suitable for the pressure and the check valves are rubbish, they cracked on first use causing 2 chemicals in both bottles to mix and react. Maybe I got a defective product. I will still send it back.
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