a stopcock comprising having a body and a core . the body has a central chamber and a plurality of connectable ports formed therein that are in fluid communication with the central member . the core is rotatable sealed inside the central chamber . the core has a first cavity , an axially connectable port fluidly connected to the first cavity , and a second cavity formed to be fluidly connectable to two of the plurality of connectable ports in the body , when the core is in a first position . the first cavity is formed to fluidly connect the axially connectable port to one of the two connectable ports when the core is in a second position .