Based on this product's specifications, here are some alternatives and similar models
Flush actuator plate M572 No name THIN chrome-matt for concealed cisterns
Summary description:
Mechanical flush actuator plate M572 (THIN) designed for concealed cisterns. Finished in chrome-matt, the plate provides a compact flush control interface compatible with standard in-wall toilet cisterns. Suitable for residential and commercial bathrooms, it enables reliable dual-action or single-action flushing depending on cistern compatibility and simplifies installation and maintenance.