Using the Plant!T big float auto top-up kit is like having a second header tank connected to your existing reservoirs! The Plant!T GMBF kit lets you connect a secondary header tank to your existing system. By using gravity and a low-pressure float valve, it automatically tops up and maintains nutrient levels in your system. It is ideal for low pressure gravity fed systems and remote systems and allotments. Kit includes (1) 2 meters, 13-millimeter flexible pipe, (1) 13-millimeter barbed tee, (1) 13-millimeter nut and tail with 3/4-inch BSP, (1) 13-millimeter poly to hose connector, and (1) low pressure float valve. Spend less time filling and inspecting tanks, and protect your plants from drying out with the Plant!T Big Float auto top-up kit today!