To enable a smooth refill to be carried out in the case that the refill is performed from a liquid pack to a pump type bottle and the like, a direct pouring from the liquid pack to a metering cup to be carried out and additionally an economical application to be attained due to the fact that it can be used again for another liquid pack after its use.

One of the extremity ends of a hollow pipe is molded into a round-shape, a pipe made of raw material showing superior resilient force and shrinkage is inserted into the hollow pipe, the round-shaped part at the extremity end of the hollow pipe is inserted into a pouring port of a liquid pack, a concave part of the round-shaped part is covered and depressed to cause it to be closely contacted and connected to the pouring port of the liquid pack, resulting in that no liquid leakage occurs, a rapid refill work can be carried out and further a direct pouring of liquid from the pack into a metering cup is enabled to save its troublesome work.