Only 4 grommets cover a clamping range from 14 to 23 mm! The new QTMB is used to route pre-terminated cables into the KEL-QUICK system. The innovative membrane enables the routing of cables with diamaters that can vary up to 3 mm. For the first time, utilising the QTMB, even large cables with cable diameters from 14 to 23 mm can be routed.