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
Sportsman Series CORDE30315 25 Foot Extension Cord with Male TT-30P 30 Amp Plug | JB Tools
Champion Power Equipment 30-Amp RV Generator 30-ft / 1 3-Prong Outdoor Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
30A 25FT RV Power Extension Cord TT30 (Safety Yellow), Black Grip Hand – Journeyman-Pro
30 Amp RV Extension Cord - RecPro
VEVOR 30 ft. 50 Amp RV Extension Cord Premium Power Cord RV Wire Diameter Extension Cord 6 Wire Gauge RV Cord HJLJQ30FT50A6HX01V1 - The Home Depot
GoGreen Power RV 50' 30 Amp Extension Cord, Plug W/ Handles - Orange / Black | eBay