Fits various bottles ] - fits 5 gallon (18.9l) water bottles with the included long upper tube: 9.5-inch & lower tube: 9.5-inch. can be made to fit 3 gallon (14l) water bottles but will to reach the bottom of the bottle - includes: pump head, long upper tube, lower tube & spout
[ patented vacuuming system ] patented vacuuming system has a adjustable adaptor that sticks tight to bottles mouth and completely blocks air and unwanted debris from the outside. creates a strong vacuum inside the bottle and helps dispense water with only 1 to 2 pumps.
[ flexible adaptor ] - adjustable adaptor secures bottles onto 52mm to 55mm mouth bottles crown-top or screw-top bottles [ excluding any glass bottles ] - simply place the pump head over the bottle and turn adaptor clockwise to secure on to your bottle