The 6 Bucket Ebb and Flow Hydroponic System is the most complete hydroponic system around! This system comes with a 60 Gallon Covert Collapsible water tank reservoir to hold all the water you need, and the 5 gallon buckets are big enough for optimum root growth. Covert Tanks are portable, lightweight and are ideal for use as a hydroponic barrel, or for water storage. Covert Tanks are collapsible and are extremely compact which makes them ideal for moving and set up in small spaces and covert ops. Made with food grade plastic. Another great feature of these systems are the aerated fabric grow pots, which allow more oxygen to the roots of your plants and are great when draining your grow. The Greentree Hydroponics Multi Flow Analog Controller Module helps regulate the timing of your water system's flow and fill pumps. Prevent fungal damage and improve your yields from now on with the new 6 Bucket Ebb and Flow Hydroponic System! How big can you expand the Super-Flow system? The Super Flow hydroponic grow system is expandable to fit any size growing space. You can run up to 18 sites with a 66 gallon reservoir. Systems larger than 18 sites will require a large capacity reservoir such as the 105 Gallon reservoir and can be purchased separately. The Greentree Hydroponics Multi Flow Analog Controller Module expands for over 24 sites. 6 Bucket expansion Kits are used to expand the system beyond 6 sites and are sold separately. *All systems are shipped with a Oxygen Pot Covert Tank Collapsible reservoir. *buckets are now fully bottom draining, made out of food grade plastics, easier to clean, and much improved retail packaging. ALL OXYGEN POT SYSTEMS NOW COME WITH THE GREEN TREE HYDROPONICS MULTI FLOW ANALOG CONTROLLERS EBB and Flow Hydroponic System Contents: 1x 60 Gal (225 Liter) Oxygen Pot Systems Collapsible Water Tank Reservoir 12x 5 Gal Super-Flow XL green grow buckets 12x Super Flow Fabric Pots and support inserts 1x Greentree Hydroponics Multi Flow Analog Controller Module 2x 251 GPH High Flow Hydroponic Pump 1x 30' 3/4" Kink Resistant Tubing 12x T-Fittings and Gromets