GEAQUELLO® R 380 swell modules are part of the GEAQUELLO® E 950 sealing system for cable and pipe penetrations. They are used for building up of the end wall of the sealing system. For vertical openings one end wall is needed, for horizontal openings two end walls are needed. The expansion modules are used as end wall/s and as “distance-keeper” between the cables/cable bundles as well as between the cables/cable bundles and the wall of the opening.