Package Includes: 2 packs tank float valves, spend less time filling and checking the water tank, Significantly save more than 30% of the water when cattle drinking, reduce the sewage discharge pressureHigh Quality: 1/2'' float valve for water trough is made of high quality PVC for durable use, corrosion resistance,no deformation,clean and sanitaryGreat Design: Automatic waterer float valve with rubber washer ensures a tight, leak free kit; adjustable arm with over 180 degrees of adjustment range1/2 inch Thread Float Valve: The use of float water level floating principle control the inlet and outlet water switch, to achieve a constant water level effect, keeps enough water and always clean waterApplication: The water trough float valve is suitable for water trough, humidifier, fountain, aquarium, pond, sheep/chicken/dog/horse/cattle feed waterer, etc.