Amazon.com: 50Amp Anderson Compatible 2 Poles Power Connector Plug Red w/ Terminals for #6 AWG Wire[2 housing+4 Terminal pins] : Automotive
Amazon.com: 10pcs 6 Gauge 6 AWG x 5/16” Pure Copper Cable Lug Terminal Ring Connectors with Dual Wall Adhesive Lined Red + Black Heat Shrink Tubing – by WNI : Industrial & Scientific
Skutt Large Ring Tongue Connector for Power Cord for 6 AWG Wire — KilnParts.com