King Innovation 3-Port Aluminum to Copper Wire Connector (2-Pack) King Innovation?s AlumiConn Aluminum to Copper Lug is approved by the Consumer Product Safety Commission (CPSC), UL, and numerous insurance companies as a safe method for aluminum wiring repair. Manufactured in Missouri, AlumiConn is a lug style connector with three separate ports to eliminate intermixing of conductors. It coats aluminum wires with a thin layer of silicone sealant to provide resistance from oxidation, and uses set screws to break up surface oxides and provide a secure mechanical connection. Avoid a complete re-wire by using AlumiConn, the most cost-effective aluminum wiring repair solution available. Features Approved by the consumer product safety committee (CPSC), UL listed, approved by insurance companies Most cost-effective solution for repairing aluminum wiring systems Three ports allow conductors to remain separate, permitting the lug to run at a lower temperature and provide longer term reliability Secure mechanical connection USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.