PURPOSE: To firmly connect a hose by obviating the necessity of a clip and a clamp by press-fitting one end of the hose onto the outer periphery of a pipe part and carrying out pushing-in until the top end passes through a ring- shaped projecting stripe and a projection part.

CONSTITUTION: An annular basic part 13 is formed, separating from a pipe part 12 on the outside of the root part of the pipe part 12 which is projectingly installed at the basic part 1, through the communication to a fluid passage, and at the annular basic part 13, a ring-shaped metal plate 2 having a toothed projection part 22 which bites onto the top end outer peripheral part of a rubber hose 3 which is externally press-in-fitted into the pipe part 12 is arranged so that the toothed projection part 22 projects from the inner peripheral surface of the annular basic part 13. The outside diameter of a ring-shaped projecting stripe 14 which is formed on the outer peripheral surface of the pipe part 12 is made larger by 30% or more than the inside diameter of the rubber hose 3.