Review on 🐠 Efficient U.P. Aqua CO2 Inline Atomizer for Aquarium: 3/4-Inch - 16/22mm by Chris Pinkston

I have bought three of these units. Everything came as shown in the picture, so far so good. When installed, two of the three leaked slightly around the connector in the case itself. I managed to fix one with plumber. It's still leaking and I'll have to replace it eventually. The second block was leaking. Since the case is translucent, you can see that the air intake is screwed in. I tried tightening the input tip and the damn thing broke. I didn't really try that hard. I am not sure if these are genuine offers or just poorly made fakes. Very cheaply made, I expected more - they are not cheap at $30 each. So disappointed! Now I need to buy two more built-in diffusers to replace the pack. Definitely think twice before you buy them.