L6 30P to L6 30R Heavy Duty Extension Cord, 14 ft | Eaton
30 Metre Extension Cable For Heavy Duty Waterproof Outdoor String Lights - 30m – Lighting Legends
20 ft. 10/4 SOOW 30 Amp 4-prong Dryer Heavy-Duty NEMA 14-30 Extension Cord | eBay
Mighty Cord A10-3010EH Red 10' 30A Extension Cord with Heavy Duty Cable (Boxed): Amazon.co.uk: Electronics & Photo
EP Open Cord Reel with 80 Ft Extension Cord, Heavy UK | Ubuy
20 ft. 10/4 SOOW 30 Amp 4-prong Dryer Heavy-Duty NEMA 14-30 Extension Cord | eBay
Mighty Cord A10-3010EH Red 10' 30A Extension Cord with Heavy Duty Cable (Boxed): Amazon.co.uk: Electronics & Photo
PRIME Y cords 30-ft 16/3-Prong Outdoor Sjtw Light Duty General Extension Cord in the Extension Cords department at Lowes.com
50 Amp Male - 30 Female Extension Cord Power Plug Adapter 3 to 4 Prong Generator | eBay
AC WORKS® 30A 125/250 Volt NEMA 14-30 4-Prong Dryer Extension Cord – AC Connectors
Conntek NEMA L5-30 30A 125V Generator Extension Cord
20 Foot NEMA L14-30P/L14-30R Generator Extension Cords, 4 Prong Heavy Duty, 30 Amp, 125/250V, Up to 7500W 10AWG Cable and The Cable UL Certification, Black: Amazon.co.uk: Home & Kitchen
AC WORKS® L14-30 Generator Power Extension Cord – AC Connectors
Master Extension cord 63A/10m for B 30, RS 40 heater | Dantherm Group
Mastercraft 30-ft 12/3 Outdoor Extension Cord with Grounded Outlet, Lighted End and Locking Connector, Yellow | Canadian Tire
Tripp Lite Heavy-Duty Power Extension Cord, 30A, 10AWG (NEMA L6-30P to NEMA L6-30R), 8-ft. - Critical Power Supplies
Camco PowerGrip 30-Amp Camper/RV Extension Cord | Features a Durable Heat-Resistant PVC Construction with 10-Gauge Wires and a Flexible Design | Rated for 125 Volts/3750 Watts | 25-Feet (55191) : Amazon.co.uk: DIY