EVAPORATED FUEL TREATMENT DEVICE AND FLUID TREATMENT DEVICE

Provided is an evaporated fuel treatment device including a mounting part provided in an intake pipe, and a purge pump including a discharge part a first introduction tube and a second introduction tube A pump body of the purge pump includes a pump tube formed with a pump flow path that extends along an axis O and that guides, to the discharge part fluid to be introduced from the introduction tube A reduced part with a diameter decreasing toward downstream is formed in the flow path on a side downstream of the introduction tube and a connection flow path that connects the introduction tube and the flow path is formed, and in a state where the pump body is removed from the mounting part the flow path communicates with outside.