Bottled Drinking Water Hand Press Pump 5-6 Gallon w/ Dispenser Home Outdoor Office The hand pump is easy to assemble and the pump tubes are removable for easy cleaning. The pump's adapter fits most standard water jugs and can be switched to a different jug in just seconds. Easy to use - just press down the pump head. Suction tube with adjustable length to suit different Bottle. Economical - no battery costs no motor. It is suitable for home, office, school, factory, hospital, camping, sports, and more. Mouth Diameter (Inner):&nbsp; 2.38&quot; Dimension:&nbsp; 7.8&quot;(L) x 3.8&quot;(D)