Maximize the performance of your Grow Flow controller units with this Grow Flow GFOE2 expansion kit by HydroFarm! With this pack, you can add up to six more buckets to your unit, boosting its performance. Suitable for all Ebb and Flow Grow Flow controller kits, this expansion kit will expand any unit you wish to add more to. This kit includes six (6) outer brackets, six (6) inner brackets, five (5) 1/2-inch barbed tee connectors, one (1) 1/2-inch barbed elbow, six (6) screen fittings, six (6) rubber washers, and one (1) 25-foot roll of 1/2-inch tubing. It also features centered drain fittings to minimize standing water, and unique aeration channels for improved root health. Expand your Ebb and Flow controller unit with this Grow Flow GFOE2 expansion kit from HydroFarm today!