SFE 12V Air Pump

This vacuum pump was exactly what I needed for my project. It was priced right and the shipping was very fast.

These air pump works great and are fun to experiment with. On the down side, they are a bit noisy (they will literally walk on your bench due to the vibrations) and their lifetime is between 200 and 500 hours according to the manufacturer datasheet. They suck air pretty fast and I have achieved a -700 mbar pressure with them which is a bit higher than what I expected from the datasheet. So, it's a good product but be aware of the lifetime and don't let them run when it's not necessary.

Air pressure could be tad higher but worked well for my project.

Works well between 3.5 volts to 12 vdc, quiet at lower voltages. Fast shipping.

I purchased two of these units and use them on a 40 watt 12 volt solar panel to aerate my pond with a bubbler. The pond is about 13 feet deep and I run a 3/8" hose line from the compressor to the bubbler. Does the trick and these units are inexpensive enough to replace them if and when they burn out.