This AC WORKS brand industrial‑grade inlet box is built with heavy‑duty thick metal to withstand outdoor exposure, impacts, chemicals, and harsh weather conditions. It features a NEMA L6‑30P 30‑amp 250‑volt 3‑prong locking inlet, providing a secure and reliable power entry point for generators, industrial equipment, and temporary power systems.The enclosure includes multiple conduit knockout options, including two combination ½" / ¾" knockouts and five replaceable knockouts with included plates offering ½", ¾", and 1½" configurations. The top access port accepts standard conduit hub accessories, and GE and Midwest brand raintight hubs are confirmed to fit.This inlet box is NEMA 3R rated, offering protection against rain, sleet, snow, and ice formation. It is cETLus listed for safety and performance.Your purchase includes a 5‑year limited warranty.