Safety and Hygiene :This water bottle dispenser doesn't contain any harmful substances.It uses durable ABS material and food-grade hose.It will not make any changes to the water and the silicone tube has no peculiar smell. Upgraded digital display and 1800 mAh battery: You can clearly see the water output so that you can better brew milk, drink coffee, bake, and cook. The built-in 1800 mAh battery can make it continuously pump 50 gallons of water and the charging time is only 5 hours. High Compatibility : This water bottle dispenser is suitable for gallon kegs with a 2.36 inch (6 cm) neck.Suitable for a variety of leverless barrel models,compatible with different capacity bottle:4.5L,5L,7.5L,10L,11.3L,15L,18.11L Portable：Drinking Water Pump is ideal for home or office use,its compact size makes it easy to carry, ideal for trailing, picnics, children's sporting events, beach days and barbecues.Automatic Electric Suction Device Is Very Convenient And Useful.