Safe MaterialBPA free drinking water dispenser, a non-toxic/odorless/high temperature cold/freeze silicone hose, does not crack. It has its insulation/High-density ABS plastic shell; 304 stainless steel for outlet pipe.High CompatibilityThe electric pumping device suitable for pure bottled drinking water, suitable for a variety of models gallon barrel without pry the lid. Compatible with different capacity bottle: 4.5L, 5L, 7.5L, 10L, 11.3L, 15L, 18.9L. Note: This drinking water pump is suitable for gallon barrels with a 2.16-inch (5.5cm) neck. Please confirm the size of your neck before purchasing.USB rechargeable water dispenserBuilt in rechargeable 1200mAh battery. Can used for 30-40 days or around 4-6 bottles of 5 gallon water once full charged. No need to charge every day.Lightweight & Easy to UseThe removable water dispenser is suitable for outdoor/indoor use. the best choice for the office, home, kitchen, school, etc. Simply fasten the drinking water pump on the bottle mouth. One automatic switch operation, convenient and fast, totally hassle free even for kids and elders.AFTER-SALES SERVICES We offer 60 days money back and lifetime services. Any problem with our water dispenser, please contact us and we will definitely offer a satisfactory solution.Why Choose Our Water Pump Dispenser? 1. Safe Material: BPA free, Food grade silicone hose, 304 stainless steel, high density ABS plastic shell. 2. USB powered: Rechargeable battery, can be used to pump out 4-6 water jugs if fully charged. 3. Fits All Standard Size Bottle: Standard size is 2.16 Inch (5.5cm) neck size, fits for 2, 3, 4, 5 gallon and other standard size water bottle. 4. Extensive use: Portable device for both indoor and outdoor use like office, home, Kitchen, camping, picnic, activities, etc