Quadgrow Watering System Auto Fill Float Valve Kit x 2Quadgrow Watering System Auto Fill Float Valve Kit x 2 can be added to your Quadgrow system or to a reservoir tray holding plant pots, automatically maintaining a consistent level of water in the reservoir or tray without the use of a power supply. This multipurpose float valve is ideal for automatically maintaining water levels within a container. It is perfectly suited to the SmartReservoir tanks used in the Quadgrow Pots Watering System, 4 Pots and