Scranton Products Duralife Lockers are the only HDPE plastic locker that is fully fire-rated for your corridor application. Specially designed to meet the demands of the school environment, Duralife Lockers are built to withstand the harshest daily use. Scranton Products begins with the best material ™ American-made solid HDPE that is engineered for strength and durability. Virtually maintenance-free, HDPE outperforms metal lockers at a comparable price point, providing years of everyday low maintenance.