an interconnection assembly for the transport of a fluid between an external fluidic means and a mounting block of a modular fluid distribution system , comprising : a cylindrical cavity formed through a face of the mounting block ; a cylindrical flow element , a fluid passage formed therethrough , at least one retaining groove being formed on the outer surface ; a retaining means ; wherein the cylindrical flow element is inserted into the cylindrical cavity , the annular sealing means being compressed , the annular sealing means forming a hermetic seal between the fluid passage and the fluid port , the retaining means engaging retaining groove , the retaining means being braced against the mounting block ; and wherein said fluid is transported between said external fluidic component and said mounting block via said cylindrical flow element .