This Large Hydrator  permits the use of a long neck beverage bottle (such as an olive oil, wine, or drink bottle) as a reservoir. The hydrator itself has an inside diameter of 34mm (1.33") and is 110mm (4.33") high, including the extension. Thus, it can accommodate full size beverage bottles. An adapter is available seprately so that water globes can be supported in the Large Hydrator nearly vertically, for a more decorative look.