Conntek 14360 RV 30 Amp 10-Foot 10/3 Bright Extension Cord
30A 125V 10FT STW 10/3  RV Camp Power Extension Cord, NEMA TT-30P to NEMA TT-30R, Straight blade,Stays flexible in cold weather, Heat Resistant up to 221F Approval: Plug, STW: UL, C-UL