AC WORKS 20 Amp 277-Volt NEMA L7-20P 3-Prong Industrial Grade Locking Male Plug

This AC WORKS brand wiring device [ASL720P] is made of a very durable construction able to withstand impacts, chemicals, and weather. It has a weather-tight seal and a strain relief structure with SJT, SJO, SOO, STW 12/3, 10/3, or bigger cable specifications. This adapter also features a locking plug, preventing items from becoming unplugged when in use. DIY products have a 1-year limited warranty.