INTBUYING Hydroponic Site Grow Kit 36 Ebb and Flow Deep Water Culture Garden With Pump The system produces high-quality vegetables, herbs, melons, and berries--45-day yields! That are more nutritious and better-tasting than soil-gardened produce because oxygenated water and nutrients are delivered directly to the roots. This hydroponic indoor or outdoor grow system is designed for fast, maximum-convenience vegetable gardening. This hybrid model can be Ebb and Flow type when using a time controller or a Recirculating Deep Water Culture type without using time controller. Inner stopper all uses food grade material for the water balance on every lay.