TPI 08805200 SO 8/3 25' Power Cord for Select FSP Series Heaters
AC WORKS 50ft Super-Duty L5-30 Cord 50-ft 8 / 3-Prong Indoor/Outdoor Soow Super Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
Southwire Welder Power 25-ft 8/3 3-Prong Indoor/Outdoor STW Heavy Duty Lighted Extension Cord - Walmart.com
Direct Wire 8/3 Power Adapter/9451C Plug - 1252 Receptacle 3ft - 83PA3 – Baker's Gas & Welding Supplies, Inc.