Abstract: Many water based agriculture chemicals such as dairy chemicals, including teat washes and teat dips, are supplied in concentrated form in containers or bottles. The concentrated liquid is typically diluted with water at a ratio of about 1 to 5 ounces concentrate per gallon of water to form a treatment solution. The present invention involves a device that can both meter and dispense a precise amount of concentrate from a storage container for dilution purposes. The device of the present invention includes a dispenser that is connected to a container of liquid concentrate, typically a plastic bottle containing 1 to 3 gallons of the concentrate liquid, that is held by a retainer. A precise amount of liquid is obtained by rotating a handle of the dispenser from a first position to a second position, preferably about 180.degree. to 360.degree..