Review on 🐠 SUN YT-304 18 Liters Per Minute Aquarium Air Pump - 4 Outlets, 8.5 Watts, 120 Gallon Capacity by Tara Williams

I don't have any fish and use it for DIY PCB etching. It has 4 independent outlets (meaning you can plug in one or two while leaving the others open), with only two outlets this device creates 4x more bubbles and high circulation in my pickle tank than the older device in the picture . For just a few euros you get 8 times the air output. The only downside is a bit loud noise! But what do you expect for this price? I don't care about that aspect as I only turn it on for 30 minutes and it's still quieter than the compressor in my fridge.