Hydroponic Controller System - Accommodates 12 Farm Modules Max. - 13 Gallon Reservoir - Includes Tubing 8-Gallon Controller Barbed Tees and Elbows - General Hydroponics GH4520
The Controller is very simple - a container with a float valve is connected to the line of units. A master reservoir filled with fresh water and nutrient is located on top of the float-valve actuated Controller. As the plants draw water from their individual reservoirs, the liquid levels drop causing the float valve in the Controller to open and draw fresh nutrient from the master reservoir. This automatically maintains the ideal nutrient level in all the interconnected units, simple, elegant, reliable and inexpensive.Controller Dimensions:12"W x 12"L x 3'6"HController includes:13-gallon reservoir with grommet Fittings Blue 1/2" tubing 8-gallon controller with float valve Seven 1/2" barbed tees Two 1/2" elbowsCan accommodate up to 12 Farm modules maximum. Any more requires that you move up to the Texas controller.