If you are looking for a food safe Arduino Pump the RobotGeek Large Liquid Pump is a great solution. This pump is self priming, quiet, and can move up to 2 liters per minute.
To use this for an Arduino Pump project all you need is a RobotGeek Relay and seperate power supply. The pump will work with standard aquarium tubing. The fit is a little tight, but the tubing will go on. We recommend picking up some of our food safe 3.5mm silicone tubing which fits great and goes on easier!
Recommended Arduino Pump Tutorials:
Recommended Pump Accessories
PLEASE NOTE: Carbonated liquids cannot be pumped with this type of pump.