The battery water pump are water-drawing tools specially designed for the ... . It is used for the 5 gallon water bottle. The battery water pump 1.Material:ABS, P.E, food-grade,without ... , Neck Dia. of the bottle: 56mm(standard), 58mm Advantage:1.Battery operated. (2*LR20,D Size) 2.No drips or leakage ... . 5.Spare brush for easy cleaning. 6.Stable liquid flow. automatic battery water pump