This Advwin 30L 6-Tier Plant Hydroponic System with Submersible is made of PP raw material. The 30-litre water tank reduces the frequency of water addition, and the bottom is equipped with wheels for easy and flexible movement, suitable for light adjustment and cleaning needs. Equipped with 6 column units, supporting three-dimensional planting and improving space utilisation. The water tank is equipped with a water level gauge, which can visually check the remaining capacity and avoid dead roots or waste. Paired with a water divider silicone tube kit and a 12V submersible pump, the submersible pump is IPX8 waterproof and low consumption safe. The silicone tube can evenly deliver nutrient solution and also provide oxygen and root protection, meeting the needs of efficient planting.