These Emerson Universal Compression Connectors are technically advanced compression connectors incorporating unique dual compression ring technology which provides superior holding strength and excellent protection against moisture migration. The universal design allows it to be used on standard Dual, Tri and Quad-Shield Cables while maintaining excellent hold strength against the Cable. Use With Any All-In-One Universal RG59/RG6/BNC/RCA Coax Compression Snap-N-Seal Tool F compression connector - O-ring in connector face to provide a hermetically sealed interface - Works with standard shield through quad-shield Series 59 Cable - Conforms to industry standards