Based on this product's specifications, here are some alternatives and similar models
Rack accessory SCHROFF Pentair Techn. Eckprofil 6HE corner profile for 6U rack units
Summary description:
SCHROFF Pentair Techn. Eckprofil 6HE is a rack accessory designed as a corner profile for 6U (6HE) rack units. It provides structural support and alignment for server cabinets and electronic equipment, enabling secure mounting and improved stability. Suitable for data centers, telecoms and industrial racks where precise corner reinforcement is required.