Rain Forest 66, 318 and 242 are some of the best aeroponic systems made. They operate using a "Vortex Sprayer" which pulls water from the bottom of the reservoir and atomizes it into a very fine mist. The Rainforest 242 will accommodate at least 42 cuttings in its 2" net pots. The 318 uses 18 three inch net pots. The 66 uses six 6" net pots. They are easy to use and practically fool proof. You can grow full-size plants in either the 318 or 66.