Pipe coupling

A pipe coupling comprising:

• a female member;
• and a male member to be inserted into the female member, wherein
• the male member includes
• a plurality of tube couplings to which tubes are attachable, and
• a retainer that holds the plurality of tube couplings,
• the retainer includes
• a plurality of receiving portions into which the tube couplings are fitted,
• a linking portion that links the plurality of receiving portions, and
• a rod-shaped portion extending from the linking portion at an angle such that a diameter expands with respect to an axis of the male member, and
• the rod-shaped portion engages with a wall surface of the female member in a state in which the male member is inserted into the female member to prevent the female member and the male member from coming off, and when the rod-shaped portion is pressed, the rod-shaped portion is elastically deformed with a base end thereof as a fixed end to release the engagement with the wall surface of the female member.