To provide a water/hot water supplying joint capable of easily keeping the strength.

The joint 2 includes a main cylindrical part 2b having a main pipe connection port 201, and a plurality of branch cylindrical parts 2c having branch pipe connection ports 202 extended from the main cylindrical part 2b to the side. The joint 2 is a synthetic resin molded product by dual molding and is composed of a cylindrical-shaped joint body 3 and a cylindrical-shaped outer layer body 4 which covers the outside of the joint body 3 by insert molding. Gate positions 3a, 4a of the joint body 3 and the outer layer body 4 in molding are deviated from each other so as to make positions where weldlines by molding are likely to generate differ from each other.