ROXTEC's RM00100301000 sealing module with core RM30. Multi-diameter modules. 10 – 25 mm cable diameter. Consists of two (2) halves and has removable layers and a center core. One single module can seal a cable or pipe over a span of several different diameters simply by peeling layers from the module halves. This ensures a perfect fit. Module functions as a spare module for future capacity.