Based on this product's specifications, here are some alternatives and similar models
Mounting bar Rittal 4694.000, steel, silver, depth 340 mm, pack of 20
Summary description:
Rittal 4694.000 is a steel mounting bar designed for rack and enclosure installation. Finished in silver, the bar has a depth of 340 mm and is intended for secure mounting of equipment inside cabinets. Supplied in packs of 20 pieces, the bars are suitable for industrial and IT racks where durable interior support and precise mounting are required.