Safe and healthy, this is a BPA-free drinking water bottle dispenser. We use food grade silicone rubber tubes, 304 stainless steel, and high-density ABS plastic to ensure your water does not taste like plastic, and our dispenser is non-toxic, odorless, and poses no harm to your health. The electric water bottle pump is suitable for 2–5 gallon kegs with a 2.2-inch neck. It is suitable for a variety of gallon keg models without a lid lever. It has a built-in rechargeable battery that can be used for 30–40 days, or around 4-5 gallon water bottles once fully charged. It can work anywhere you want. This long-lasting battery will make your life so much easier. It's easy to use just press the button on the top of the dispenser. Press once to turn it on and once to turn it off. Once powered on, it will automatically stop working after one minute for protection. A hassle-free operation for everyone, including the elderly and children.