A sealing system for sealing environmental elements from passing between at least one cable and a wall, including a hug secured to the wall and having threads. A ring is disposed about the cable and has at least one slit disposed therein for sliding the cable therein to dispose the ring about the cable. A pressure nut compresses the cable therein and has threads for screwingly engaging the threads of the hug, a first half, and a second half releasably coupled to the first half for inserting the cable therein to dispose the first half and the second half about the cable. Further, a mechanism for sealing is disposed about the cable between the ring and the pressure nut. The ring, the mechanism for sealing, and the pressure nut are installed about the cable without interruption of cable transmission service.