TechCrunch via AP The man has not been named, but the store is known for shipping hundreds of millions of items a year.
The man stole the water purifier from a warehouse that has been used to store products for Amazon, the company said.
The store was not damaged, and there was no indication the suspect had any intentions of selling it.
The Amazon fulfillment center, which is located in the city of Nashville, is one of the largest warehouses in the world.
The warehouse has been a popular place for people to shop for electronics and other products.
The incident is under investigation by the FBI, the U.S. Postal Inspection Service, and local authorities.