ANDERSON 50A (4 pack) GREY PLUG 160AP.
Anderson SB50 with #6AWG Contacts – Grey. Rated to 50 Amps continuous use Voltage Rating: 600 V; Contacts will accept wire from 6 to 16 AWG (1.3 – 13.3 sq mm). Remember: Only plugs of the same colour plug together. (Red-Red, Grey-Grey etc)