12-10 gauge heat-shrink 3-way terminals. For use in harsh environments, these terminals feature a heat shrink connection that also has an internal sealant. After crimping the terminal onto the wire, simply apply heat. Keeps moisture out while ensuring your wire does not pull out of the terminal. Quickly and securely connect three wires with one terminal. Constructed of three heat-shrink ring terminals riveted together through the stud holes. Requires one crimp per wire, plus heat.