Champion Power Equipment 25 fts. 30 Amp 125/250-Volt Fan-Style Flat Generator Extension Cord 100437 - The Home Depot
Champion Power Equipment 25-Foot 30-Amp 125/250-Volt Duplex-Style Flat Generator Extension Cord (L14-30P to Four 5-20R) - Thermoplastic - Yellow in the Generator Accessories department at Lowes.com