Conntek 20571 Generator Extension Cord 25-Foot 10/3 30 Amp 3 Prong NEMA L5-30 Eextension Cord
30A 125V Generator Extension Cord 2 P / 3 W Grounding Locking, NEMA L5-30P male plug, NEMA L5-30R female connector Max Power: 3750W, Stays flexible in cold weather,  Heat Resistant up to 221F Application: Transfer Switches, Generator,...etc. Approval: Plug, Connector, and STW: UL, C-UL  Cable:25FT STW 10/3