Based on this product's specifications, here are some alternatives and similar models
Wall-mount toilet frame brackets TECE 9380300 for concealed cistern mounting
Summary description:
TECE 9380300 frame brackets designed for installation of wall-mounted (suspended) toilets. These mounting brackets are intended to secure the toilet to the carrier frame or concealed cistern system, ensuring stable attachment and proper alignment. Suitable for professional sanitary installations and replacement works, they simplify fixing and help achieve reliable support for the toilet pan.