The main function of the RUBI DELTA level system is to avoid lippage during the installation process of tiles both on floors and walls. The DELTA level system also prevents the movement of the tiles during the setting of the adhesive and during installation, the number of corrections in the position of the tile itself is reduced.

The basic principle of the DELTA level system is that of pressing the highest piece, until matching its position with the adjacent tiles, thus obtaining a substantial improvement of the surface flatness.

For tile formats from 30cm x 30cm or bigger, always with back buttering.