Active Aqua Grow Flow 2.0 Expansion Kit with six 5 gal Square PotsDescription Expansion Kit for Grow Flow Ebb and Gro Controller: Boost the performance of your system by including six extra buckets through this kit. Our buckets are compatible with all ebb and flow controllers so you can augment any setup you've already got or are thinking of introducing into your space. Limitless Growth Opportunities: With multiple kits, the potential for expansion of your system is significant. You can expand your ebb and flow