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.com: Industrial & Scientific
Ideal Twister Al/Cu Wing Nut Wire Connectors Aluminum to Copper 65 Purple NEW | eBay
Parallel Groove Connector manufacturers
IDEAL, Wire Connector, Twister Al/Cu, Conductor Range: 1/12 AWG A | Crescent Electric Supply Company
Thomas & Betts Part # APS06 - Thomas & Betts Aluminum And Copper Wire Split Bolt Connector For #2-9 Stranded Aluminum - Wire Connectors - Home Depot Pro
Alumiconn Al/Cu Wire Connectors 3-Ports Purple (2-Pack) in the Wire Connectors department at Lowes.com