RVBOATPAT 2 Port Insulated Splice Connector 2-14 Gauge Aluminum to Copper Wire Connectors 5/32" Slotted Allen Hex Dual Entry Splice Electrical Connector. Mixing Material Wires Connection: Insulated wire connectors allow copper wire to copper wire, aluminum wire to aluminum wire, and copper wire to aluminum wire connections, making the insulated connector the best alternative for safely splicing aluminum wire to copper wire.
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