Notice: our brand. Recently, there have been many fake and shoddy products. Please see our brand clearly and do not buy the wrong product. Ours are genuine. We can only guarantee the quality and after-sales of our products, please be sure to see clearly before placing an order. Highly Compatible More portable:suitable for most buckets on the market. 5-6 gallons are suitable for various gallon water bottles with universal jug cap. ( 2.16 / 55mm neck Diameter). For example: 18.9L ect. Light and Easy to Install:No batteries or power required, take up less space, are easy to use, and do not require regular cleaning like expensive water dispensers and used anywhere indoor and outdoor. Safety Clean:This product is made of high -density ABS plastic, non -toxic and harmless. Easy to Use:Soft touch button. children, seniors and adults can easily use the pump.