Safe and healthy material: Electric water pump with food grade silicone hose, 304 stainless steel outlet pipe and durable PP material shell. BPA-free, odorless and non-toxic drinking water pump. The built-in silicone gasket effectively prevents water leakage. Wide Application: This upgraded 2-5 gallon water pump can match bottles of different sizes. Compatible with most bottle sizes, such as 3.8L, 5L, 7.5L, 10L, 11.3L, 15L, 17L and 18.9L. Rechargeable battery : Built-in 1200mAh rechargeable battery, which can be used for a long time after fully charged. Supports USB charging. Package includes: Water pump main motor, outlet pipe, water inlet pipe (50cm), USB charger and English user manual. Easy to carry: the water pump is lightweight (235g), portable, ready to go, compact size makes it easy to carry, ideal for family, office, travel, picnics, kids sporting events, days at the beach and barbecues.