【100% Two-Year Warranty】Great customer service, if you have any problems wiht the item, our customer service team will solve your problems within 24-hours.this water pump is BPA free drinking water dispenser, food grade silicone hose, 304 stainless steel, high density ABS plastic, no toxic, and no smell.Built in rechargeable 1200mAh battery. Can used for 30-40 days or around 4-6 bottles of 5 gallon water once full charged.The electric pumping device suitable for pure bottled drinking water, suitable for a variety of models gallon barrel without pry the lid.Simply fasten the water bottle pump on the bottle mouth. One switch operation, totally hassle free even for kids and elders.Note: The drinking water pump is suitable for gallon barrels with a 2-2.16 inch neck. Please confirm the size of your neck before purchasing.