Installation frames allow for the practical placement of the toilet bowl on the bathroom wall. It is a metal structure with a water tank to which a ceramic toilet bowl is attached. It is mounted on the wall with screws, which allows it to remain stable. At the same time, the water and sewage connections are hidden in the wall or in the drywall structure. This allows for a neat, uniform bathroom design. Toilet concealed frames are usually adjustable, which allows the use of one model in various bathrooms.