Grow Various Vegetables, Fruits, Flowers and Crops Easily! Our RDWC hydroponic grow system is equipped with top drip irrigation, utilizing negative water pressure to circulate oxygenated nutrient solutions. Balance the PH and EC levels of the entire system. The RDWC hydroponic kit has four 5 Gal capacity buckets with 8" opening planting baskets, allowing you to grow a variety of vegetables and fruits. The precise top drip irrigation with good sealing, enhances easier water absorption. The air pump and air stone provide a large amount of oxygen. Expanded clay can fix the plants, drain quickly, and prevent overflow of the water level tube. Floating water level indicator makes easy viewing, reminds adding water in time. Hydroponic planting is hassle-free and can be done in 4 easy steps. Step 1: Add enough nutrient water; Step 2: Put in clean washed clay pebbles, ensure drip ring is covered; Step 3: Transplant seedlings with roots below the irrigation ring; Step 4: Plug in the power. This recirculating deep water culture growing bucket can be installed in the planting tent, garden, balcony or office, home. Suitable for growing vegetables, fruits, flowers and crops. It is not restricted by seasons and can be cultivated without soil.