The General Hydroponics GH94023 WaterFarm float valve with barbed fittings is primarily used in conjunction with hydroponic controllers. The float valve helps to fill or drain water from a hydroponic system. The float valve is compatible with all WaterFarm hydroponic systems. Float valve comes standard with all WaterFarm systems. Use as a replacement part or a new piece to a custom system. Complete your hydroponic set up with this General Hydroponics GH94023 WaterFarm float valve today!