Alumiconn Al/Cu Wire Connectors 3-Ports Purple (2-Pack) in the Wire Connectors department at Lowes.com
Copper to Aluminum Connectors, Copper Aluminum Wire Connectors with 2 Port, Aluminum to Copper Lug, Safe Aluminum to Copper Wire Connectors for Aluminum Wire Repair (10) : Amazon.co.uk: Business, Industry & Science
Thomas & Betts Part # APS06 - Thomas & Betts Aluminum And Copper Wire Split Bolt Connector For #2-9 Stranded Aluminum - Wire Connectors - Home Depot Pro