Active Aqua (2) Hydrofarm Grow Flow Ebb & Gro Controller Units w/2 Pumps| GFO7CB 20 inch Sensitivity: 90 dB @ 1

Sensitivity: 90 dB @ 1 Watt/1 Meter

Large ring measures 3

5-inch tall aluminum handrails and 11

Each blade is 10

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Active Aqua (2) Hydrofarm Grow Flow Ebb & Gro Controller Units w/2 Pumps| GFO7CB 20 inch Sensitivity: 90 dB @ 1Each Grow Flow Controller Unit can control up to 24 of our 5 gallon growing modules, and up to 48 2 gallon modules. Includes one 7 gallon controller bucket, premium Grasslin timer, two 250 GPH pumps, all fittings, tubing for pumps, and sample nutrients. Active Aquas Grow Flow is the most efficient ebb & flow system on the market. With the Grow Flows easy to program controller unit, you can pretty much "set it and forget it." And since your pumps are