F Male Universal Compression Seal, Jar, 50PK The GEM 0406-00CSFP compression seal design was created to develop a line of products that would be used by the installer of CATV, IP CCTV, and Home Theater Systems, using one assembly procedure and one crimp tool for F, RCA, and BNC connectors. This connector will cost more but there will never be a service call as a result of this connector. Product Features: Employs a 360 degree plastic insert completely capturing the cable components to the inside walls of the connector Tapered plastic compression sleeve Once the connector is properly installed, it cannot be pulled off