- 3M™ EF200XLB Black Framed Anti-Glare Filter fits 17" - 18" diagonally measured CRT and LCD standard monitors - Excellent glare reduction for more comfortable viewing - Available in flat frame design - Blocks up to 99.9% of ELF/VLF E-field radiation and reduces static and dust build-up when properly grounded - Includes both LCD and CRT hanger arms for a custom fit on your monitor - Cleans easily with a soft, lint free cloth and glass cleaner - Lifetime warranty - Made in USA