Based on this product's specifications, here are some alternatives and similar models
Display privacy filter 3M PF215W9E for 21.5" (54.6 cm) monitors, frameless, 16:9, anti-glare, scratch-resistant
Summary description:
3M PF215W9E is a frameless display privacy filter designed for 21.5" (54.6 cm) 16:9 monitors. It provides privacy by narrowing viewing angles, reduces glare with anti-glare coating and offers scratch-resistant protection. Suitable for LCD monitors, lightweight (≈0.083 kg) and in black color. Ideal for offices, public spaces and mobile workstations to protect screen content and surface.