To provide a member for ejection which dispenses with an adaptor with a complex structure, can enhance the degree of freedom of an installation place for a water treater, and can be easily attached to a branch port attachment with various structures for an existing combination faucet.

This member 30 for ejection of water is characterized in that: the member is equipped with an inlet part 32 for raw water W, a supply port 33 for supplying the raw water to the water treater, a return port 34 for generated water subjected to water treatment, and an ejection part 35 for ejecting the generated water; and the inlet part 32 for the raw water W can be attached to the branch port attachment with the various structures for the combination faucet.