CPLCRBC-BR F-Conn Radial Bubble Compression Tool. ICM Corp. uses the highest quality materials and metals on the market to produce quality tools and connectors that create superior solutions for professional security installers. The patented Cable Pro (RBC) radial bubble compression tool works with F-Connís standard F, RCA and BNC connectors in sizes RG59 and RG6 in addition to a full line of plenum connectors for installations requiring plenum wiring. The DB compression connection creates two 360-degree compression connections (one interior and one exterior) providing permanent, double bubble connection. The system is ideal for security cameras and other exposed wiring installations. The unique double bubble connection provides superior protection against moisture migration limiting poor signal quality due to the elements.