20m double socket heavy duty 13amp 2 5mm cable extension lead
Tripp Lite Heavy-Duty Power Extension Cord, 20A, 12AWG (IEC-320-C19 to NEMA 5-20P), 10-ft. - Critical Power Supplies
Utilitech 9-ft 12 / 3-Prong Indoor Spt-3 Heavy Duty General Extension Cord in the Extension Cords department at Lowes.com
Tripp Lite Power Extension Cord, C19 to C20 - Heavy-Duty, 20A, 250V, 12 AWG, 6 ft. (1.83 m), Black - Critical Power Supplies
Southwire 50 ft. 12/3 STW 20-Amp Power Distribution Outdoor Heavy-Duty Twist-Lock Generator Extension Cord 90288802 - The Home Depot
Digital Energy 20 Amp 6-20/T- Slot Plug | 6-Ft Cord - 900 Joule Surge Protector | 6-Outlet, Heavy Duty Steel Body Power Strip 6 FT on OnBuy
Manufacturer Base 20 Amp 125 Volt NEMA 5-20 Heavy Duty Appliance Extension Cord Custom Long Power Cords UL Listed - Cablesgo
20m 230v 16 amp electrical hook-up heavy duty extension lead
Tripp Lite Heavy-Duty Power Extension Cord with 20 AMP Breaker, 20A, 10AWG (NEMA L5-30P to NEMA L5-20R) 2-ft.(P043-002): Amazon.co.uk: Electronics & Photo
32 amp 3pin Round Pin 240v HEAVY DUTY Industrial Extension Lead Cord x 10 Meter | eBay