To provide a discharger in which the number of components is reduced.SOLUTION: In a stem 10 of a discharger, a communication hole 10a for communicating the inside of an air cylinder with a gas-liquid mixing chamber R is formed, and a lid cylinder 24 for openably closing the communication hole is fitted at the outside of the stem so as to be movable up and down. The lid cylinder has an inner lid cylinder 25 which abuts on an outer peripheral surface of the stem, and an outer lid cylinder 26 which surrounds the inner lid cylinder from an outer side in a radial direction. The lid cylinder is formed integrally with an air piston 13. On the outer peripheral surface of the stem, the inner lid cylinder has an upper seal part 25a which comes into close contact with a portion located above the communication hole, and a lower...

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