Improved refill cap, characterized by being constituted by an envelope body, introduced under pressure in the neck of the bottle, through whose lower part the sealing ball is displaced, while in the upper part it has the pouring device coupled, which is provided of a projecting tube superiorly, divided into two zones, a central cylindrical and a peripheral conical, in order to decrease the surface tension of the liquid and facilitate the exit thereof through said cylindrical zone, which acts as a dropper, leaving the latter closed inferiorly by a shield that serves as a stop to the ball in the open position, while driving the liquid towards the side windows, thus producing a zone of turbulence inside the pourer. (Machine-translation by Google Translate, not legally binding)
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