Pondpro Airlab EV100 Air Pump

A powerful pump. I use it to run about 42 sponge filters with many many metres of airline, so great pressure also. It has overheated on me before about 5 months old. Just completely stopped working. Once it was cool hours later it worked again. Was very scary. Thought it fully broke. Might not be quite right since (concerned it'll just break any day now, so I'm getting a backup pump just in case my other smaller backup pumps aren't sufficient. Is a fair bit louder than I hoped though.