PURPOSE: To avoid the need of making a liquid passing case into liquid-seal structure by directly connecting a liquid passing pipe which communicates to a liquid passing case and a liquid pouring hose in liquid tight form.

CONSTITUTION: A suction port 1a at the lower edge of a liquid suction pipe 1 pumps up fuel, and the connection part 1b in the upper part is connected directly and liquid tightly onto a connection part 2b bent into L-figure shape of a liquid pouring hose 2. The connection parts 1b and 2b are accommodated into the connection part 3a of a liquid passing case 3, and fixed onto the liquid passing case 3 by a set screw 4. Therefore, the liquid suction pipe and the liquid pouring hose can be directly connected without using the liquid passing case, and the need of making the inside of the liquid passing case into liquid- sealed structure is avoided.