To provide a simple-structured manual opening/closing window of a double sliding type or a single sliding type with a washing device, capable of reducing the manufacturing cost.

In the manual opening/closing window of the double sliding type, an outside center vertical window frame 1e is mounted on the outdoor side of a window frame 1, and the piping part 21a of a water supply pipe for spraying water on the outer surface of an opening/closing glass door 2 on the inner side is attached along a vertical window frame 1b on the inner side glass door 2 side. A water spray part 21b is attached along a top rail 2a of the inner side glass door 2, and the piping part and the water spray part are connected by a one-action connection joint 21c. A water supply pipe for spraying water on the outer surface of an opening/closing glass door 3 on the outer side has the same structure as mentioned above. A wiper blade 11 for the outer side glass door is attached to the outside center vertical window frame 1e, and a wiper blade 32 for the inner side glass door is attached to a stile 3b on the meeting part side of the glass door 3 on the outer side.