This invention relates to a container for use with an endoscope. More particularly, this invention relates to a container for storing and delivering sterile water to an endoscope. A container for storing sterile water for supply to an endoscope comprises a substantially rigid receptacle providing an internal volume for storing said water, the receptacle having opposing first and second end walls, in use said first end wall forming a base of the receptacle and said second end wall forming a top of the receptacle such that a vertical axis of the receptacle extends substantially perpendicular to the first and second end walls; a first port for connection to an air line of an endoscope; a second port for connection to a water line of an endoscope; a first fluid conduit extending between the receptacle and the first port; and a second fluid conduit extending between the receptacle and the second port, wherein, in use, the first and second ports are located in a fixed position with respect to the receptacle such that the first and second ports lie in the same vertical plane as the centre of gravity of the container when the receptacle is filled with water.