Conntek PL1430L1420 30-Amp 125/250-volt Model L14-30P Locking Plug for Model L14-20R 20-Amp 125/250-volt Locking Female Connector Adapter Cord 1.5ft Pigtail Power Adapter Plug: NEMA L14-30P Receptacle: NEMA L14-20R Max Watts: 5000 Cable: STW10/4