Hydrofarm Active Aqua Grow Flow Ebb & Gro Controller Unit Flo w Pump. Good, used condition, clean, and tested working. Used one season, then placed in storage. There is a 1\" crack on the controller box that has been waterproofed with hot glue. The box electronics were inspected and clean, no need to open controller. This system can be used with 6-48 pots, your reservoir size determines how many pots you can fill. You will still need to buy another pump and some hoses and fittings to complete your project. Large item cost more to ship, I ship out right away. No returns on this item.  Local pickup in Hesperia CA, is available.