Based on this product's specifications, here are some alternatives and similar models
Ventilation grille AWENTA T30 white with insect mesh, Ø100 mm
Summary description:
AWENTA T30 is a white ventilation grille designed for Ø100 mm duct connections. It features an integrated insect mesh to prevent ingress of insects and debris while allowing airflow. Suitable for residential and light commercial ventilation installations, wall or ceiling mounting, and replacement of standard 100 mm terminal grilles.