$64.99 25 Feet Heavy Duty Generator Extension Cord,Generator Locking cord,NEMA L14-30P/Four 5-20R, 4 
Generac 6112 20-Foot 30-Amp Portable Generator Cord with 4-NEMA 5-20R Outlets - Walmart.com
Portable Generator Reviews: Conntek 20602 50-Foot 10/4 30 Amp 125/250 Volt 4 Prong L14-30 
