The 2 Port 3M Wire Connector is an in-line connection that allows you two join two exposed ends of wire together. The body of the 3M Wire Connector is filled with a mineral oil-based grease to provide a moisture-resistant seal. Once you have your wires inside the connector, all you have to do is push the yellow button down to create the connection and to secure the wires.
Only works with 18 gauge wire. Anything thicker won't fit and you can't tell whether you have a good connection by inspection. Does not work with Lowrance Hook 5 power cable.