25 foot 30 Amp RV Extension Cord Twist Lock With Signal Light Trekpowe – trekpower
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
Camco 30M/ 30F AMP Power Cord
AC WORKS 10ft NEMA L6-30 Cord 10-ft 10 / 3-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com