To provide a trigger type liquid sprayer which is constituted so as to freely open and close a liquid passage communicating with a nozzle hole perforated at the center of a nozzle cap front wall by the rotation of the nozzle cap engaged with a jetting cylinder front end part and in which the rotation of the nozzle cap is stopped in a state that the liquid passage is completely opened to facilitate a liquid spray operation only in the state that the liquid passage is completely opened.

The trigger type liquid spray is constituted so that a passage part of the jetting cylinder side and a passage part of the nozzle cap 11 peripheral wall side respectively forming a part of the liquid passage 13 completely and accurately communicate with each other when a part of a 2nd stopper 21 mounted to a part of the nozzle cap is brought into contact with a part of the liquid sprayer 2 and stopped.

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