21.5 inches Computer Privacy Screen Filter, Anti-Spy Anti-Glare Screen Protector Film Compatible 21.5" Widescreen Computer Monitor with Aspect Ratio 16:9 (WxH:476mm x 268mm) - Walmart.com
Amazon.com: Privacy Screen Filter for 32 Inches (Monitor Screen Measured Diagonally) Desktop Computer Monitor with Aspect Ratio 16:09. Screen Protector Size is 27.87 inch Width x 15.66 inch Height : Electronics
Kensington MagPro-27.0"- Monitor Privacy Screen Filter Black K58359WW - Best Buy