The WaterFarm is built with high-impact plastic to assure a long service life. The WaterFarm's unique square design allows growers to closely pack WaterFarm units to create large, high-density installations. The WaterFarm will grow small, medium, and large plants. With its large water capacity and low water requirements, the WaterFarm is simple and efficient. Offering the features of larger systems at a lower cost without sacrificing quality or performance, the WaterFarm is seen as one of our very best buys.