Container consisting of a receptacle intended to contain a solid dialysis product and a connector (200) to connect the receptacle to a dialysis machine, the connector being equipped with * a filling channel (202) that crosses it from one end to the other and which allows filling of the receptacle with the solid product； * a fluid line (211, 212, 213) to introduce a liquid that forms the solution into the receptacle, said fluid line extending between the first connecting part (211) that opens from outside the receptacle and a hole ( 213) that opens into the receptacle； and * a fluid line (221, 222, 223, 224) to extract the solution obtained from the receptacle, said fluid line extending between a second connecting part (221) that opens to the outside of the receptacle and a hole (224) which opens into the receptacle, * the first connection part (211) and the second connection part (221) serve as means for connecting the corresponding fluid lines to the dialysis machine, characterized in that the channel (202) of filling opens at both ends and because the two fluid lines (211, 212, 213； 221,222, 223, 224) are airtight between the hole (213, 224) that opens in the receptacle and the first or second part (211 , 221) connection, respectively.Recipiente constituido por un receptáculo destinado a contener un producto sólido para diálisis y un conector (200) para conectar el receptáculo a una máquina de diálisis, equipándose el conector con * un canal (202) de llenado que lo cruza desde un extremo al otro y que permite el llenado del receptáculo con el producto sólido； * una línea de fluido (211, 212, 213) para introducir un líquido que forma la solución en el receptáculo, extendiéndose dicha línea de fluido entre la primera parte (211) de conexión que se abre desde el exterior del receptáculo y un orificio (213) que se abre al interior del receptáculo； y * una línea de fluido (221, 222, 223, 224) para extraer la solución obtenida del receptáculo, extendiéndose dicha línea
