Woodhead 28W74BLK Watertite Wet Location Locking Blade Plug - Black Electrical Wiring Plug with 3 Wire/ 4 Pole, NEMA L14-30 Configuration, 30 A, 125-250 V - Waterproof Plug: Electric Plugs: Amazon.com: Tools & Home Improvement
Molex 28W08 Watertite Extreme Plug with Locking Blade, 3 Pole/3 Wire, Non-NEMA, 250V, Cord Grip Body Size F4 | JensenTools