• Emergency shut-off valve provides fail-safe overflow protection
• Adjustable ladder level control lets you fill containers to the desired height
• Heavy duty Float switches dictate when and where water flows
• Submersible pumps coordinate the flow of water within plant sites
• Includes 3/4\" Straight connectors and 3/4\"-1/2\" Reducer fittings to accommodate both 2 and 5 gallon buckets.

Each grow flow controller unit can controlup to 24 of our 5 gallon growing modules, andup to 48 2 gallon modules. Includes one 7 gallon controller bucket, premium Grasslin timer, two 250 GPH pumps, All fittings, 1/2\" Tubing for pumps, & Sample nutrients. Active Aqua grow flow is the most efficient ebb & flow system on the market. With the grow flowers easy-to-program controller unit, you can pretty much \"set It & forget it.\" & since your pumps are only pumping a short time each day, The system is extremely reliable & efficient. Just set the fill & drain cycles, & the controller unit does the rest! As for safety, The grow flow is the only unit Available with fail-safe overflow protection. If the float valve stops operating, the LED indicator lights up on the control panel & The Emergency shut-off valve automatically shuts down the system, preventing any spillage or damage to your growing area. Have bigger plans? With our convenient grow flow expansion kits* you can connectup to 24 growing modules to a single 5 gallon system – andup to 48 modules with the 2 gallon system! You can also build your own system from the ground up by purchasing all the components individually.