This Opcom GrowTank hydroponic culture system is completely new and unused and comes in its original packaging. The system is suitable for efficient and clean growing without soil. Plants grow directly in water with nutrients, making dirty hands and soil superfluous. The large water tank of 21 gallons (about 80 litres) ensures stable and efficient growth, even with long-term use. The integrated LED lighting with full color spectrum simulates natural sunlight and supports all growth phases. The Smart Box automatically controls the lighting and air pump, ensuring ease of use and consistent results. The system comes with EC and pH meters, a seed starter pack and various accessories. This provides you with sufficient supplies for about half a year's use. A complete and professional hydroponic culture system, ready for use, suitable for both novice and experienced users. New in box. Brand: OPCOM Product: Hydroponic farming system . . Type: GrowTank .