||12x16x8.5 KLT Automation Container KLT4321.BL3. KLT Containers were designed for manual handling and highly automated handling. The KLT Containers accommodate the most diverse methods of automated handling of any Schaefer container system. Because automation requires minimum deflection, KLT Containers are extremely rigid, making them the most heavy-duty Containers Schaefer Offers. KLT Containers feature lifgting points for vertical lifters, two methods of horizontal extraction, built-in label holders, bar code areas, and a reinforced bottom for use in mini-load systems and heavy loads.