Amazon.com: Houseables 30 Amp Generator Cord 4 Prong, Extension Generator Cable, 10 FT, 125-250v, 7500 Watt Max Rating, UL CUL, NEMA L-14-30P, Rubber, 10 Gauge, Heavy Duty, L14-30, Transfer, Twist Lock Power
Utilitech Generator Cord in the Generator Accessories department at Lowes.com
VEVOR 30 Amp Generator Cord 4 Wire 10-Gauge 40-ft / 4 3-Prong Outdoor Sjtw Heavy Duty General Extension Cord in the Generator Accessories department at Lowes.com
Houseables Generator Extension Cord, Electric Wire, 3 Prong, 30 Amp, 250 Volt, Single, Black, 25 Ft, All Rubber, 10 Gauge, Heavy Duty, L6-30, Commercial, Electrical Power Cable, with Locking Switch - Amazon.com
Clear Power 12/3 STOW 2 ft 3-Outlet Generator Jobsite Extension Cord Adapter with “W” Splitter, CP10136 - Walmart.com
DuroMax XPC12050C 50-Foot 12 Gauge Triple Tap Extension Power Cord — Electric Generator Depot
25 ft. 30A 125/250V Flat Generator Extension Cord - Champion Power Equipment
DUROMAX 25 ft. 12 Gauge Portable Generator Single Tap Extension Power Cord XPC12025A - The Home Depot