The MegaFarm Hydroponic garden systems are built out of thick high-impact plastic to assure a long service life. Features a unique 20-gallon growing chamber on top of another 20-gallon reservoir, along with a dual drip ring to allow the indoor gardener unlimited plant options. Capable of growing small, medium, large and extra large plants. With its large water capacity and low water requirements, the MegaFarm is simple and efficient. One of the only systems out on the market that can grow extra large sized plants, including many varieties of trees.