Hoteon Electric Water Pump is made of food-grade materials, equips a large volume USB charging system, and provides strong pumping power and high compatibility. With this handy water dispenser, you only need to do is to press the button and fill your bottle without laboriously lifting the heavy water barrel. Safety: BPA free, Food grade silicone hose, 304 stainless steel pipe Suitable for:2,3,4,5 Gallon Water Bottles. Easy to Use: One switch operation. Portable: indoor and outdoor use, such as camping, picnic, office, home, etc. Large volume: 1200mAh USB rechargeable battery How to install: 1.Connect silicone hose to the dispenser. 2.Put the silicone hose into a water barrel. 3.Place the dispenser on the top of the gallon bottle. 4.Press to use. Notice: Please charge 4-5 hours before the first time use. Replace silicone hoses every 3-4 months. Do not pump alcohol and other stimulating liquids such as oil, as well as hot water over 55 ?. Do not full immersion the product in water for cleaning. Package: 1x Drinking water pump 1x USB Charging Cable 1x Food-Grade Silicone Hose