Amazon.com: ABN 30 AMP Generator Cord – 10ft Heavy Duty Extension Cord Lock Plug, STW 3 Prong Locking Twist Plug RV Power Cord : Patio, Lawn & Garden
AC WORKS 100ft NEMA L14-30 Cord 100-ft 10 / 4-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
NEMA L6-30P To L6-30R Extension Cord | L6-30 Twist Lock Plug
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
AC WORKS® L6-30 30 Amp 250 Volt Rubber Extension Cord – AC Connectors
AC WORKS 10ft NEMA L14-30 Cord 10-ft 10 / 4-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
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
MaxWorks 80843 25 Ft. 30 Amp 3-Prong Male Twist Lock to 15 Amp Female Triple Outlet Generator Extension Adapter - Walmart.com
25' Power/Extension Cord with 30 AMP Male Standard/30 AMP Female Locking Adapter | eBay