Battery Water pump Use two D size battery,can replace water dispenser,good for travle Battery Water pumpEWP-001 Description: 1.Material:ABS, P.E, food-grade,without smell or toxic material to ensure waterquality. 2.Can be used with 5 gallons water bottle,(can be adjusted to 3 gallon bottle)Neck Dia. of the bottle: 56mm(standard), 58mm Why use SKL Electronic Water Pump? 1.Battery operated. (2*LR20,D Size) ***2.No drips or leakage. 3.Great for the shed, cabin, camping, etc. 4.Dust-proof outlet. 5.Spare brush for easy cleaning. 6.Stable liquid flow. With ROHS and CE reportBattery Information:LR20,Alkaline(Zn-MnO2)Size:Φ34.2*61.62 Years Quality Guarteen!Pantent products