a terminal fitting physically and electrically connected to an end of an electric wire;

a housing including a housing chamber for housing the terminal fitting and the end of the electric wire connected to the terminal fitting, an electric wire drawing port through which the electric wire is drawn to outside of the housing chamber, a communication hole through which the housing chamber communicates with the outside of the housing chamber, and a counterpart fitting chamber into which a counterpart terminal fitting to be physically and electrically connected to the terminal fitting in the housing chamber is inserted and fitted and a gap formed between the counterpart fitting chamber and an outer peripheral surface of the counterpart terminal fitting is filled with a first sealing member;

a lid member that covers the communication hole;

a second sealing member that fills a gap between the lid member and the communication hole and forms a first sealed space part in the housing with the first sealing member;

a waterproof member being elastically deformable and including one end part with an inner peripheral surface in close contact with an outer peripheral surface of an end part of the housing on the electric wire drawing port side, an other end part with an inner peripheral surface in close contact with an outer peripheral side of the electric wire drawn from the electric wire drawing port, and a tubular part connecting between the one end part and the other end part, the tubular part including a second sealed space part communicating with the first sealed space part through the electric wire drawing port; and

a ventilation component that is assembled to the lid member, enables passage of gas between the first sealed space part and the outside of the housing, and disables passage of liquid between the first sealed space part and the outside of the housing.