The Oasis Self-Watering System is capable of watering up to 20 plants for up to 40 days. Its 26-quart internal tank allows it to operate without connection to a water source, and one 9-volt battery (not included) powers it for a year. Its simple setup involves connecting water drippers along the length of the 32'-foot tube to stakes placed in plants’ pots. Once it’s connected, the user chooses the appropriate automatic setting for their plants. A front panel LED indicates when the unit is operating. Unit includes 20 inline drippers, 20 tubing stakes and 32-feet of tubing, and it’s protected by a two-year warranty.