Heavy Duty: The 2 port insulated inline splice connector is designed for 4 AWG, 6 AWG, 8 AWG, 10 AWG ,12 AWG, 14 AWG wires, which makes it can handle a wider range of wire sizes Aluminum&Copper Wire Connection: The insulated aluminum wire connector allows the copper wire to copper wire, aluminum wire to aluminum wire, and copper wire to aluminum wire connection, which enabled the copper and aluminum wire to be safely stitched together. It is more secure and reliable for your wiring Superior Material: Our 2 port insulated wire connector is made of solid aluminum with rugged high dielectric rubber/PVC coating, these insulated multi tap connectors exhibit exceptional reliability and safety. The 2 port cable connectors also come with pre-filled oxide inhibitor, which makes the electrical conductivity stronger and use more durable Easy to Install: The aluminum to copper wire connector features 2 port design, which provides you with more versatility for wire connections and installation placement. The insulated wire connector also features a slotted allen hex design, which makes it easier to tighten the connector securely Package Includes: Our package includes 6 x inline splice connectors, 1 x hexagon wrench, and 6 x E16-25 wire ferrules terminals. It will come with all necessary accessories for convenient use. It can be used for a wide range of electrical applications, including cable trays, panel boards, solar wiring, ducts, raceways or troughs Heavy Duty: The 2 port insulated inline splice connector is designed for 4 AWG, 6 AWG, 8 AWG, 10 AWG ,12 AWG, 14 AWG wires, which makes it can handle a wider range of wire sizes; Aluminum&Copper Wire Connection: The insulated aluminum wire connector allows the copper wire to copper wire, aluminum wire to aluminum wire, and copper wire to aluminum wire connection, which enabled the copper and aluminum wire to be safely stitched together. It is more secure and reliable for your wiring; Superior Material: Our 2 port insulated wire connector is made of solid aluminum with rugged high dielectric rubber/PVC coating, these insulated multi tap connectors are UL Listed for reliability and safety. The 2 port cable connectors also come with pre-filled oxide inhibitor, which makes the electrical conductivity stronger and use more durable; Easy to Install: The aluminum to copper wire connector features 2 port design, which provides you with more versatility for wire connections and installation placement. The insulated wire connector also features a slotted allen hex design, which makes it easier to tighten the connector securely; Package Includes: Our package includes 6 x inline splice connectors, 1 x hexagon wrench, and 6 x E16-25 wire ferrules terminals. It will come with all necessary accessories for convenient use. It can be used for a wide range of electrical applications, including cable trays, panel boards, solar wiring, ducts, raceways or troughs.