Electrolytic liquid production device

An electrolytic liquid production device comprising:

• an electrolyzer configured to perform electrolytic treatment to a liquid;
• an elastic body configured to press the electrolyzer;
• and
• a housing having the electrolyzer and the elastic body disposed inside the housing, wherein:
• the housing includes an inlet port that the liquid supplied to the electrolyzer flows into, and an outlet port that an electrolytic liquid produced in the electrolyzer flows out from,
• the elastic body includes a plurality of positioning depressed portions, and the housing includes a plurality of positioning protruding portions,
• the elastic body is positioned with respect to the housing by inserting the plurality of positioning protruding portions of the housing into the plurality of positioning depressed portions of the elastic body, respectively,
• each of the plurality of positioning depressed portions includes a first projection provided inside and projecting in a first direction within a plane orthogonal to a pressing direction of the elastic body to the electrolyzer, and a second projection provided inside and projecting in a second direction orthogonal to the first direction within the plane,
• the plurality of positioning protruding portions and the plurality of positioning depressed portions are disposed along the second direction, respectively, and
• the first projection and the second projection are provided in different positioning depressed portions of the plurality of positioning depressed portions from each other.