Bottled water dispensers come in three sizes. Divided into big barrels, medium barrels and small barrels. Value-added tax: 15- 18.9 liters ... There are two kinds of vats: 1. Capacity18.9l, diameter 26 cm, height 49 cm. It is filled with about 38 pounds of water. This is the most common specification on the market. 2. 15 liter capacity, 26 cm in diameter and 46 cm in height. It contains about 30 Jin of water. Middle barrel: 1 1- 12 liters. 1L- 12L capacity, 23cm in diameter and 45cm in height. It contains about 23 Jin of water. Barrel: 5-8 liters. 1, 8 liter capacity, 20 cm in diameter and 38 cm in height. It is filled with about 15 pounds of water. 2, 5 liters capacity, diameter 17cm, height 32cm. It is filled with about 10 kg of water.