To provide a device for exhibition using a water reforming machine, etc. constituted so as to objectively and easily compare raw water before reforming with water after the reforming and evoke eagerness to buy of a consumer.

The device A for exhibition of the water reforming machine is provided with a base part 1 with a sink 2, the water reforming machine B provided so that it is observed from the outside, a primary faucet 3a which supplies the raw water before reforming with the water reforming machine B, a secondary faucet 3b which supplies the water after reforming the raw water with the water reforming machine B, a display 61 which is provided on the upper part of the sink 2 and displays an image relevant to the water reforming machine B and a case 100 in which the base part 1, the water reforming machine B, the respective faucets 3a, 3b and the display 61 are provided.