1. The concept is different. The exposed installation is to install the shower on the wall of the renovated bathroom, and the water supply hose is exposed. Concealed installation is to bury the water supply pipe in the wall in advance, and only the shower head and switch are exposed.
2. The decorative effect is different, the surface-mounted shower is not very beautiful, and it will also occupy the bathroom space. Concealed showers look good and save space, but once broken, maintenance is very troublesome.