25 FT. HEAVY DUTY EXTENSION CORD – Sullivan Supply, Inc.
Southwire 100-ft 12 / 3-Prong Outdoor Sjtw Heavy Duty General Extension Cord in the Extension Cords department at Lowes.com
11 Multi-Outlet Extension Cord | Bad Ass Extension Cords
Link2Home Heavy Duty Professional Grade Metal Cord Reel – High Visibility 50 ft. 12 AWG SJTW Extension Cord with 4 Power Outlets | Costco
Woods 50 ft. 14/3 SJTW Multi-Outlet (3) Outdoor Heavy-Duty Extension Cord, Orange 826 - The Home Depot
Tripp Lite Heavy-Duty Power Extension Cord, 30A, 10 AWG (NEMA L6-30P to NEMA L6-30R), Locking Connectors, 14 ft. - power - P041-014 - Power Cables - CDW.com
AC WORKS 10ft Super-Duty L5-30 Cord 10-ft 8 / 3-Prong Indoor/Outdoor Soow Super Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
Canvas Linen Heavy Duty Extension Cord - Vintage Electric Supply
50ft Extra-Heavy Duty 3-Conductor Extension Cord — Prime Wire & Cable Inc.
Tripp Lite 10 ft. 14-Gauge 15 Amp Heavy-Duty Power Extension Cord P024-010 - The Home Depot
Heavy Duty Power Cord for Computers, Servers and Peripherals, 10-ft., 15A | Eaton