The Level Controller includes a tethered float valve for water level control in a supply tank. The panel operates on 110-volt and utilizes 110/24 volt transformer, 6-ft. GFI power, relay, on/off switch and a 10-ft. cord on the float switch. The PVC control box and float valve must be wired into a 24-volt polypropylene ball valve or butterfly valve which is priced separately. The unit is designed to maintain tank water level in a full condition, but prevent any overfill.