Freeland Ind FF Heavy Duty Plastic Watering Valve Free Flo, heavy duty, livestock plastic watering valve, no float, rod or guard needed, approved non-siphoning, fits all tanks or troughs, automatically maintains water level, protected from surface freezing, completely corrosion-proof. Features Livestock plastic watering valve No float, rod or guard needed Fits all tanks or troughs Automatically maintains water level Protected from surface freezing USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.