20' 3/0 AWG Stranded Copper Building Wire THHN THWN-2 Black Southwire or Encore $73.0 Sheath Color Black Brand Southwire Unit Type ft Wire Style Stranded Conductor Material Copper MPN 20507045 Item Length 20 Application Building condition New 20' 3/0 THHN THWN-2 Copper WireSouthwire SIMpull or Superslick Elite.Cut from roll.